Category Archives: globalism

Mapping Land and Sea in Venice (and Elsewhere), ca. 1500

The medium of single-line engraving provided an expressive medium for organizing the continuity synthetic maps of land and sea long before trans-Atlantic travel was available to most.  Mapping beyond one’s place or region is a specific area of expertise; it is not surprising that it is a difficult competency to define.  It’s long been observed that the manner in which engraving produced an exactly replicable visual statement brought a variety of levels of expertise to bear on the map, both as a repository of collective visual memory and a coherent visual statement designed to orient readers to the notion of a uniform space.  But it’s interesting to consider the local differences in how a coextensive notion of space was understood to be composed of mapping the integration of land and sea:  and the understanding of the political power of the Serenissima–and the authority of the Venetian senate–as extending “onto the salted waters [sopra le acque salse]”–suggested a unique model of imagining worldly rule that uniquely inflected the construction of a cartographical space.

The transmission of the concept of a map of uniform coverage–one first expressed by the second-century astrologer and mathematician Claudios Ptolemaios [Κλαύδιος Πτολεμαῖος], bequeathed to us as simply Ptolemy, was successively translated in early modern Europe considerably before maps of land were fully integrated with maps of sea.  The  translation of the forms by which Ptolemy mapped an inhabited terrestrial expanse not only to superseded the inhabited world as Ptolemy had described it and imagined it, but broached a different model of continuity within visual form:  epistemologically distinct spaces of travel that corresponded to different forms of mapping were joined in a Ptolemaic planisphere, as were the distinct competencies of mapping, in what might be profitably examined and studied as a ‘trading zone’ of varied forms of technical skill. 

 

1.  Mapping Land and Sea

Techniques of artistic engraving offered a matrix in which to synthesize mapping forms from the fifteenth century, and the medium increased a synthesis of formats of mapping, as well as a the demand for maps as reproducable forms.  As much as benefiting from Ivins’ useful characterization of the innovative ways that print afforded “exactly reproducable graphic statement,” engravers’ skills provided a way to transmit the map as a graphic form.

The Dutch engraver and cartographer Mercator in 1569 described his map as a synthesis of geographical maps and nautical charts:  in so doing, he modernized the projection of the map’s surface as a continuous surface.  In a unique and inventive way, Mercator assembled a record of terraqueous expanse on parallels and meridians to address a large audience of readers by boasting of his ability to bridge the distinct media of nautical charts of the ocean with geographic maps–whereas the Ortelian “Typus Orbis Terrarum” of 1570 directly below displayed traveling ships, riverine networks, and maritime expanse on curved meridians, Mercator’s projection distributes an inhabited expanse on perpendicularly intersecting meridians and parallels.  But both maps advance cartographical expertise as preparing a surface that could be uniformly scanned by viewers as a proportional and uniform distribution of the inhabited world.

 

OrteliusWorldMap1570

Mercator Close-Up

Mercator did not explain the mathematics of a uniformly mapped space.   But the unique projection he devised gained broad authority by the seventeenth century as a means to visualize global relations.  Although the Mercator projection ensured that the loxodromic lines of nautical travel, denoted in charts by rhumb lines, would perfectly intersect with meridians, the straight parallels construed “ad Usum Navigantium Emandate Accomodate” was not adopted for sailing or for plotting voyages until the ability to measure longitude at sea–partly since he did not explain his method for calculating the “true course” on straight lines, but also since the media of terrestrial maps were so distinct from nautical or navigational carts.  But the combination of registers for noting nautical and terrestrial space, or imagining expanse on ship and on land, provided a major shift in maps’ graphic design and epistemological claims.

The gradual supersession of the autonomy of  sea-charts facilitated increased claims of realistic representation–or reality effect of mapping land and sea in a continuous frame of reference.  The combination of geographic and nautical charts to record of the known world in ways shifted how the world is known depended on acceptance of the descriptive potential of maps, as much as their accuracy or the use-value they gained to navigate in an era when calculation of latitude at sea depended on the sighting the altitude of the sun above the horizon and due course rarely achieved.  But the Mercator projection integrates land charts and marine charts to provide totality of global expanse.  This was the first age of globalism, and it could be readily understood.  The cognitive basis of maps as vehicles seems concealed in Cornelius de Jode’s presentation of Mercator’s projection as a “Totius orbis cogniti Universalis descriptio” or record of the known world in 1589, a decade after its appearance:  it offered tools for knowing the inhabited world as well as a record of the known world.

A similar visibility of the world’s surface was advanced in Cornelius de Jode’s later compendium of global coverage, which synthesized the conventions of nautical charts with the conventions of terrestrial mapping to create a convincing understanding of relationships between nautical travel and terrestrial expanse.

MErcator 1579

Such supersession of the conventions of mapping had to an extent previously occurred in the combination of results from different mapping formats in a unified cartographical space.  Yet even before Mercator devised this projection, sixteenth-century maps had synthesized the content nautical maps had increased the claims of realistic representation–or reality effect–in printed maps.  The graphic and pictorial detail and abundance of signifiers that was invested in Ptolemaic projections had increasingly shifted the status of the map from a schematic register which lay at remove of one from space, to a compelling synthesis of terrestrial relations for its viewer:  and the map became a surrogate able to stand in metonymic relation to a place it described, stood at the center of  modern claims of maps as forms of visual relation to space that could be inscribed with meaning.  Indeed, the combination of registers of terrestrial and nautical cartography compellingly joined areas of practice that had been kept previously separate formats of spatial descriptions, if not incommensurable registers of qualitatively different registers to chart spatial continuity.

Was this change in attitudes to the map partly enabled by the combination of registers of terrestrial and nautical cartography?   From previously separate formats of spatial descriptions, if not more significantly incommensurable registers of qualitatively different forms of space, the map’s surface became understood as a way to register motion through a uniform space and encounter places on a determined path of travel.  The use and status of the map as both a register and descriptor of expanse was already evident in the integration of nautical charts and Ptolemaic maps Bernardus Sylvanus designed in Venice after 1508, which, despite the notorious absence of coverage of North America and reduced coverage of the globe, had previously described a terraqueous unity in compelling–and readable–ways by explicitly combining what had been seen as incommensurable orders of registering expanse.

 
Sylvanus PLanisphere--close up

 

 

The legibility of the 1511 projection of Sylvanus was both very contingent and local in nature, despite the universalizing viewpoint it prepared of the inhabited world.  When Sylvanus, hailing from Eboli, possibly also an illuminator of erudite texts, undertook a newly illustrated printed edition of the ancient geographer Claudius Ptolemy’s  Guide to World-Mapping, known in the Renaissance simply as the Geography, he decided to create a more updated edition of comparative maps deriving from nautical charts collated by sailors and the set of maps transmitted in codices of the Ptolemy’s work of global geography.  The plans for a new Venetian edition had recently been abandoned, although several plates for it had been made and perhaps engraved by 1508, probably including a new world projection.  In confronting problems of modernizing the Ptolemaic maps, Sylvanus foregrounded the integration of islands and coastlines compiled in nautical charts in the maps transmitted in Ptolemy’s geographical treatise, translating the conventions for land-mapping into representational conventions from the graphic arts and advances of two-color typography:  the birds perched on the cornices of his map of Italy, the sixth plate of Europe, may echo the modern bird’s-eye view of the peninsula he offered, using nautical maps to present the configuration with a sense of naturalism often foreign to early printed Ptolemaic maps.

Sylvanus Italy--Europe 6

 

 

2.  Oceanic Space

The treatise that the second-century geographer titled a “handbook for drawing world maps” was both a technical guide and a compendium for drafting land maps.  But in Venice, a city of maritime trade, Ptolemy’s promise to collate and list a database of all the places in the inhabited world’s surface had potential appeal as incommensurate with the chart used to decide or compare nautical routes of travel, and posed a specific challenge to synthesize mapping forms.

These charts provided an alternate source of information that promised both to refine and expand the ancient geographer’s encyclopedic claims that led him to list names of ancient cities and noteworthy cities or rivers exceeding 10,000 in number–if the richness of Ptolemy’s text led erudite readers to consult his book with their manuscripts of Herodotus or Livy, as Bernardo Machiavelli–father of Niccolò–their elegant terrestrial maps they more often addressed learned readers and armchair travelers as surfaces often read in relation to other ancient texts, rather than graphic descriptions of expanse.  Indeed, their printers did not aim to address a larger audience of readers.  Yet even when presenting accurate place-locations in coastlines that resemble charts, the maps struggled to offer an easily readable surface.

 

sugar hillls in Spain

 

The synthesis of a more legible cartographical space was foreign to earlier cartographical traditions.  The history of the transmission of medieval maps is considerably complex–as are the techniques of varied forms of map making.  Elizabeth Edson argued information from accounts of travelers, traders, and sailors became accomodated in world-maps from the early fifteenth century, joining travelogues that both expanded the content and challenged the parameters of earlier symbolic world maps.  The inclusion of information from travel accounts and nautical charts not only expanded the surface of maps, but posed complex problems of integration on parallels and meridians–a reproducible grid–and elicited potential graphic models for spatial representation over a century after its textual translation that lent formal authority to the world map.

The alternatives for such a synthesis were not clear.  The considerable questions that surround the transmission and construction of earlier manuscript charts, often drawn on sheepskin to guarantee their preservation and illustrate their value, are raised by the unclear relations between how the maps were transmitted and copied–if not created–given the unclear questions about copyists reliance on the intersecting directional lines that seemed sketched over their content in tracing coastal shorelines and locating islands, or how the skein of lines apparently determined from compass-bearings provided guides for nautical travel.  These maps were produced predominantly in port towns, as this Mediterranean chart executed in Alexandria by Jehuda Abenzara (or ben Zara), coastlines are crowded by names of coastal ports written perpendicularly to the shore, linked by a network or web of potential sea-routes that demand close reading and intense preparation by specially trained scribes:

Jehada Abenzara

In port cities like Alexandria, chart-makers regularly synthesized and collated a sort of collective memory of varied routes of travel that might be on board any arriving ship, in the hope of piecing together these local records of coasts or island-charts to synthesize more expansive networks of trade with a degree of accuracy that minimized cartographical distortion with a precision that geodetic observations had not allowed.

The chart synthesized a form of collective memory, if the protocols by which its contents were transmitted are not clear:  the organization of a synthetic record of travels provided little more than symbolic reference to inhabited interiors, however, which in essence remained “off the map.”  Rather than a representation of terrestrial space, it primarily provided a record of the location of ports and idealized potential lines of nautical–rather than terrestrial– travel.

mostra-cartografia

The spatial mapping of coastal cities in the Mediterranean, and situation of coastlines in a broad nautical expanse–both in relation to both equinoctial lines and vertical bars of latitude however provided an alternate orientation to the network of the web of loxodromic lines of the compass rose.  The below schematic version of a portolan chart, signed by Juan de la Cosa of c. 1500, provided a distinct frame of reference and spatial indices to enumerate points of landing and prominent capes in the New World at different latitudes for its readers.

Wrote de la Cosa's c 1500 map

1500_map_by_Juan_de_la_Cosa

The parchment portolan chart stored in Madrid’s Museo Naval and made in the port city of Andalusia, Puerto de Santa María, was prepared for competencies of a restricted audience, with specific interpretive tools in mind–whether they were kept by captains, or by trading houses is unclear, as is the primary techniques they use to demonstrate relations of space.  By the fifteenth century, elegantly decorated versions became prized possessions among even landlocked elites–probably in copies that obscured or hid their own mercantile provenance and were designed to stake boundary lines of exploration or colonization in the New World, by demonstrating the boundary line of Tordesillas.  But although the competencies of mapping these documents enlist to render expanse are opaque, their synthetic construction have provoked continued investigation of their formal manipulation or symbolic construction of mapped space.

Some of the relevant underlying schema of the networks and constellations in charts have been identified, but their operative value is not known–were they of use for copyists in Salamanca, Barcelona, or Genoa, or were these keys that allowed them to be read?  The construction of scale lay in the relation among focal circles, wind roses, and loxodromic lines, as in this reading of the Cantino Chart.

800px-Compass_grid_Cantino_planisphere_(1502)

 

Spatial position is not much of an apparent interest, however, so much as the collation of alternative networks of travel–or, in the case of some charts presented by the Spanish or Portuguese, to illustrate the meridian that demarcated colonization of the New World at the Treaty of Tordesillas.  The image of nautical continuity was a huge attraction for the humanist geographer Martin Waldseemüller, but his 1516 “Carta Marina” based on Portuguese marine charts like the so-called Cantino chart constituted part of his broader cosmographical project, but this image, discovered only by the Jesuit Josef Fischer around 1901, constituted an alternate model of cosmographical learning to his large world map of 1507, 4.5 to 8 feet, provided a wall-map whose comprehensive character was less successful in making claims for its legibility, if it invested greater artistic skills in converting the format of nautical charting to a legible form that Waldeseemüller had the projection engraved in the same dimensions.  This map printed on high-quality hand-made rag paper was only found in one sixteenth-century bound volume, but was a complicated investment, even more so than the cosmographical map that Waldseemüller described as having been printed in 1,000 copies.

 

Carta-Marina-LG

Somewhat oddly, the map did not include the image of “America” surrounded by oceanic waters that distinguished the lavish cosmographic wall-map he had printed in 1507, and whose accompanying treatise described America as “an island . . . surrounded on all sides by sea,”  in his Cosmographiae Introductiomost probably because its sheets reflected the content of sea-charts–even if it superimposed an equi-angular grid that had little relation to the graticule employed in the terrestrial wall-map he had titled a Universalis Cosmographia.

Oceanus Occidenatils

The two large wall-maps produced at the University of Vosges, then in the Holy Roman Empire, both only recently acquired and restored by the Library of Congress, enshrined opposed if  incommensurable models of world-geography at the very time Sylvanus prepared his own edition of Ptolemy’s precepts of geographic map-making and study of global geography.   Did the lavishly produced “Carta Marina” offer a counterpart to the geographic theorization of expanse that Waldseemüller had advanced in his cosmographical writings?

3.  Envisioning the Continuity of Terrestrial Geography

The location of geographical in the continuous coastlines of manuscript nautical charts was hastened by a demand to process the over 12000 identified sites Ptolemy specified as able to be mapped in a format  which conformed to viewers’ expectations for representing spatial continuity.  And Sylvanus seems to confront this difference shift in collating nautical charts with other mapping forms in Venice around 1510,  in what seems a uniquely local manner to read a map’s universal claims.

The detailed coverage of the world’s surface in sixteenth-century Europe increased not only the coverage or precision of maps, I would argue, so much as the claims of realistic representation–or reality effect–of maps in critical ways.  Yet changing understanding of the map as a medium, as well, provided Bernardus Sylvanus with grist to collate nautical charts in a set of new conventions that created a uniformity among data of diverse provenance previously regarded as qualitatively distinct if not incommensurable orders of spatial description.  Although his exacting transposition of ancient names into modern outlines of land-masses ran against the critical project of comparing the ancient and modern worlds, the uniform conventions of maps he made presented a distinctly uniform continuous surface in images from charts.

For charts were less concerned with describing or denoting spatial location, than determining (and collating) potential routes of travel:  the conceptual mapping of routes of travel was rarely invested with descriptive force or value; its competency reflected applied knowledge.  The growing authority of the terrestrial map as a comprehensive description, however–one of the deepest of modern claims of maps as competencies rooted in visual design, rather than nautical knowledge–arose from the combination of registers of terrestrial and nautical cartography, previously separate formats of spatial descriptions if not more significantly incommensurable registers, in a sort of a trading zones of semiotic conventions from varied areas of life, which bridged or linked hitherto incommensurable formats to denote expanse.

As the rich spatial information contained within the medium of the chart was transposed to the surface of terrestrial maps,  something like a wrestling with epistemological claims for knowing space and locations seems apparent in the maps included in treatises of global geography first translated in the fifteenth-century, most particularly in Claudius Ptolemy’s second-century Guide for Drawing Terrestrial Maps, whose maps Renaissance editors of the treatise had increasingly invested with increasingly comprehensive ends–increasingly relying on the toponymically crowded but crisply defined coastlines transmitted in charts to blend seamlessly with inland areas.  The accumulation of local and pictorial detail to combine an over-abundance of signifiers altered the distinction between the land map and nautical chart, raising truth-value claims about the chart as a representation that stood at remove of one from the world that this post can only begin to suggest:  increasingly, the map became a place that could be inscribed with meaning, or became a register from which to relate to foreign lands, if not a substitute for them.  The diminishing authority of the chart lay partly in a limited ability to determine position at sea, but also a limitation of the ability for encoding further information in its content that would satisfy its audience.  Edward Wright observed the errors of sea-charts as a basis for calculating position in 1599:

EdwardWright-CertaineErrorsinNavigation-1599

A word or two about this complex treatise, abundantly overflowing with strange toponyms that elicited readers’ curiosity even if its content were difficult to translate into the standards of eloquent expression to which many of its humanist readers were habituated–leading some to indicate Strabo as–to quote Isaac Casaubon–the “summo scriptore, quod praeter acuratissimam totius orbis nunc cogniti descriptionem, tanta doctrina, tamque varia omnium rerum scientia refertum est, ea denique arte contextum . . .

Ptolemy’s expansive catalogue of locations had long demanded to be given a visual form.  The question of their visual coherence led some of his later editors to rely on nautical charts that included places Ptolemy had not indicated, but the nautical chart provided little analogous framework of coherence by which to grasp their situation in a continuous expanse.  The geographer Angeliki Tsorlini has recently employed digital technologies to map relative locations defined by the terrestrial coordinates in Ptolemy’s treatise in ways that reveal the very compelling map of Mediterranean cities his treatise would have offered.  Most of the cities are ports, located along the shore, to be sure, but a considerable number remain inland cities located with apparent relative precision, with minimal significant distortion for much of Italy, the Adriatic, and Greece.  The copious abundance of familiar locations and interest in their clustering must have increased demand for their depiction.

Place Names from Ptolemy in Modern Map Projection

In the first codex that arrived in Rome, found by Maximous Planudes in the late fourteenth or early fifteenth century, the abstract ordering of the situation and topography did not pose an intellectual problem of viewing space (Burney 111; British Library).  Despite the formal appearance of the island of Taprobana, thought to perhaps represent Sri Lanka, the red lines of parallels of latitudes and meridians of longitude in which Ptolemy argued geographic mapmakers could usefully divide the world for readers on measured units, provided limited claims to mediate a naturalistic image of expanse.

Maximous Planoudes' Taprobana

Planoudes was careful to note the precise location of places on spatial coordinates, but the metric values of locations were not presented as lying in exact correspondence to their spatial situation.  The illustration of cartographical images that expanded later codices of Ptolemy’s treatise worked hard to provide maps that were commensurate with the over 1200 place-names–including mouths of rivers, promontories, mountains, or landmarks–contained in his geographic compendia were sought to be illustrated in authoritative form.

As the work reached a large audience in manuscript, terrestrial space was presented in schematic terms, the maps seem to wrestle with the abstraction of space, as if in ways that could not be imagined in visual or pictorial terms as a surface that could be scanned, as is evident in this map of German lands in one codex of the Geography, which enumerated towns and rivers in a new abstract form, listing inhabitants and towns as in the Ptolemaic manner, with minimal recognizable guides or explicit orientational clues about their spatial situation and topographical location, even when that region lay on the margins of the Roman world:
Magna Germania forests in Swabia

 

Yet the land-locked nature of these regions made the legibility of expanse less concrete.

Even in areas that claimed continuity with the ancient world, the production of Ptolemaic treatises curiously included modern views of Mediterranean cities in several deluxe of codices illuminated in Florence, as if to expand the treatise’s qualitative coverage of European cities in a rhetorically persuasive image for readers–these images had less regard for the systematic terrestrial coordinates Ptolemy proscribed than for preserving noteworthy sites in each place, or offer a ‘chorographic’ complement to Ptolemy’s explicitly geographic concern.

996179_671379542888235_530184269_n

 

4.  Symbolic Syntheses of Mapped Space

The question of what sort of graphic synthesis was provided in a geographic map is broadly tied to Renaissance visual culture, but posed particularly pressing questions in port cities that compared Ptolemy’s precepts with maps of nautical expanse.  Bernardus Sylvanus assembled engraved maps for his edition of Ptolemy shortly after the plans to print an edition of the treatise in Venice collapsed or failed, for reasons of skill or financing.  But a huge shift occurred in the production of maps that made such authoritative regional claims as depictions had already occurred, reflected in the preponderance of their incision, illumination, and distribution in centers of visual cultures in northern and central Italy, central Germany, and the Netherlands:  the specific forms of overlap between nautical and terrestrial methods in sites from Venice to Rome to Nuremberg created a rich repertory of maps with expansive truth-claims as forms of depiction.  His work came on the heals of an existing experimentation with combining cartographical registers of description in a universal register of mapping habitations of terrestrial space, evident in the 1507-8 world map of the Roman edition of Ptolemy, designed by the northern engraver Johannes Ruysch, and contemporary to the plans for a Venetian edition of Ptolemy’s treatise.

The manner that this 1507 world map mediated the legibility terraqueous expanse as a continuous surface might have offered a model for Sylvanus’  integrating of mapping forms:  for the Ruysch projection is in ways a restatement of cartographic expertise.

 

Rome 1507

The black-and-white outlines of the copperplate incision helps foreground the legibility of toponyms and textual panels alike that lie on the map’s curved meridian lines, as the stippled surface of oceanic expanse suggests the fact of its comprehension in the map–a comprehension rendered evident to viewers by the unveiling of the new form of a circumnavigable Africa and India, as well as the introduction of the newly discovered capes, rivers, and islands of the Americas:

Tolomeo-Stampa-Roma

 

The historian of cartography David Woodward argued that cartographical competence reveals a growing “rationalization of space” around 1492.  In ways, we have begun to remove cartography from a professional genealogy that places a premium on rationality–such a claim is concealed within the creative combination of forms of diverse sources mapmakers have long imaginatively integrated in synthetic designs.  But the limitations on the ‘rationality’ of the map–or the grounding of its authority in its rationality–demands future research for how mapmakers who amplified the local qualitative content of cartographical media.

Taking a step further backward in time, we can perhaps appreciate how the designers and illuminators of maps of maps included in manuscripts of Ptolemy’s treatise seem ambivalent in their use of parallels and meridians as a framework for defining a cognitive relation to expanse or for recording a cognitive relation to place:  for they treat the graticule of the map more as a frame of reference by which to register terrestrial position, than as an enabling format for graphic representation:  the iconic portrayal of place in early maps as clusters of houses that positioned against the blank ‘space’ framed by coordinate system or patches of forest tries to bridge Ptolemy’s ancient model for denoting a uniform abstraction of terrestrial expanse on Euclidean precepts and the ability to transcribe space.  Illuminators, few of whom are known,  invested maps with very limited mimetic qualities from the 1450s and 1470s to communicate their continuity:   the new interest in regional maps as registers lead illuminators to position clusters of houses with peaked roofs and taller towers in dense proximity to each other to distinguish areas of settlement, beside clustered areas of forest growth–as the Black Forest in Bavaria–that provided some vague reassurance of the correspondence of space.  Some of the owners of such maps added places near their own residence, or areas that they knew, omitted in the printed editions or codices they owned, as if to give the maps an expressive value that they feel they lacked.

 

Added cities of Hamburg and Lubek

Bohemia in 1477 Ptolemy

Did the second-century geographer’s “handbook for drawing world maps” have different implications in Venice, a city of maritime trade and considerable diversity, where nautical maps were more prevalent than maps of terrestrial expanse by the early sixteenth century?
4.  Back to Bernardus Sylvanus in Venice, ca. 1500
The shift in Venetian culture for locating place in a map’s expanse is reflected in the collation of a set of independent views of neighborhoods to create a dramatic imagined synthetic view of Venice as seen from above in a wall-map composed from six large individual woodblocks and large rag sheets.  The master of perspective Jacopo de’ Barbari designed the detailed view by taking he city’s coasts a a frame in which to distribute its built and inhabited expanse:  heads of winds of each direction frame the view, recalling the spokes of a wind-rose and the disembodied heads of putti who surround most early printed Ptolemaic maps, magnify the city’s coastlines and maritime surroundings, revealing the complexity of its physical plant as if the city were something of a microcosm of the inhabited world, and to showcase the expansive position of Venice on the Adriatic.  The view situates the “forma urbis” not only as a built space but in realtion to the surrounding sea, dotted with individual boats and a regatta:  in the distance, one sees the Alps to the north:  the city appears as a microcosm of global expanse, as the depiction of its inhabitation in each rione of Venice stands as a graphic surrogate for the mapping of a miniature world.
Jacopo_de'_Barbari_-_Plan_of_Venice_-_WGA01270
The particular detailing of a sea as continuous with coastlines and inhabited world provides the informed viewer with something of a metaphor for the unity of land and sea in world-mapping, revealed in Jacopo’s attention to both wind-heads round the city and to a regatta that braves Adriatic winds, exploiting his attention to the finely engraved lines of the wavy waters:
Barbari Regata
What sort of view did Jacopo de’ Barbari compose in this elegant multi-sheet wall map?  The view is often compared to the elevated “bird’s-eye” perspectival views of the “forma urbis” of Renaissance cities, but rests on a synthsesis of an imagiend or virtual view from individual surveys of the city:  one recent digitization of the view of “Venetia 1500” helped reveal the synthetic unity Jacopo took pains to created a uniformity of urban space from individual surveys as an illustration of considerable skill of rendering an almost planimetric space for viewers to scan as a continuous surface that extended to the surrounding oceanic sea:
Gridded view of Jacopo's Venice
The multi-sheet map, whose production required three years, exemplifies a Venetian appreciation of elevating a record of collective perceptions by combining map-making and perspective with particular virtuosity.
Jacopo_de'_Barbari_-_Plan_of_Venice_-_WGA01270
Each of the six sheets provided detailed records of the city in what Fortini Brown has called an “eye-witness style,” but a imported mapping records to a continuous picture-frame that pushed the cartographic metaphor of transcription to transcend a single fixed perspective.
Barbari Close-Up with Tritone
The luxury print of multiple sheets provide a surface into which the viewer can descend into specific neighborhoods or regions that are immediately recognizable:  the continuity of its content were thematized in another recent digitization of the map created by the Correr Museum:
But the lines of the Venetian lagoon and Adriatic suggest the clearest inclusion of a sense of maritime space in the map–an illusion that was echoed in the corpus of Sylvanus maps.  For Jacobo de’ Barbari created a model for viewing the coherence of urban space that responded to a challenge for ordering the unity of terrestrial and nautical space.  When Bernardus Sylvanus intended to expand the cartographical corpus of Ptolemy’s Geography in Venice around 1508, he consciously and proudly incorporated information from the surface of sailors’ nautical charts into the land-maps denoted by spatial coordinates in earlier editions of Ptolemy’s treatise, creating a unified legible cartographical surface and using printer’s red to place cities in a continuous landscape–if often situating ancient names of place from Ptolemy’s work within the modern coastlines of nautical charts, in ways that went against the scholarly tradition of comparing ancient and modern geography by juxtaposing “ancient” and “modern” maps, but also advanced a single cartographic record as authoritative and unique, shading coastlines to suggest the maritime field in which he placed new nautical discoveries–and limited America, famously, to the Columban islands to the ahistorical exclusion of all North America.

219-v1-800x600

Rather than enabling spatial travel, the world map of two sheets noted place-names in a distinctive printer’s red that stand out from rolling hills, framed by etched lines of waters on their coasts as if in imagined relief:

Sylvanus expanded Mediterranean with nuatical maps

The map’s space was treated as a continuous surface, defined by the coastlines from modern nautical charts, if the toponomy was often ancient in origin, treating the cartographical surface as a uniform register of inhabited lands:

Sylvanus Spain Coast

Little biographic information is known about the production of the maps of Bernardus Sylvanus da Ebola, though he has been possibly identified with an illuminator.  But he clearly exploited, even more than his predecessors, the semiotic synthesis that print allowed in Venice.  This is evident both in its combination of text and woodcut imagery in this two-sheet map, and the overlay of a graticule, equatorial bar, and wind-heads, combining conventions of different mapping media more explicitly than even earlier editions of the existing maps of the Ptolemaic corpus.

The introduction of islands and coastlines not in most all of the maps editors of the previous five printed editions of Ptolemy’s treatise on world-mapping (a sudden burst of editions which we can label Bologna 1477; Rome 1478; Ulm 1482; Berlinghieri 1482; and Rome 1507), presenting more clearly identified coasts and islands–as the ‘isole fortunate’ off of Africa’s western coast, although it omits the New World–but are often of limited geographic accuracy. The distinct use of type to balance the legibility of a map crowded with toponymy by two-color ink adopts the innovation of the material production of books to create a surface easily read by its customers–and he invited readers of the maps he organized as a comparison between the maps Ptolemy described and the versions corrected by modern nautical charts to “compare Ptolemy’s words with navigations themselves” and decide for themselves, using two-color printing to facilitate an intensive reading of the map’s surface, and in the attention that he gave to islands in the Mediterranean, as the Balearic islands off the coast of Spain, where the etching of lines suggest the surrounding seas that hit their rocky shores.

Balearics

The significance of the line in the medium of engraving has been argued to facilitate the conventions of uniform mapping of terrestrial expanse, allowing engravers to exploit the geometric formats of Ptolemaic mapping in graphic form in particularly expressive ways, the expressive value of the Sylvanus maps derived from their synthesis of conventions of map-making in a continuously readable form–one that created new attentiveness, indeed, to the encryption of information from the surface of the map, both in the map of the world’s surface and the individual tables editors helped prepare for Ptolemy’s treatise.

This must have responded to an increase in what might be called geographic curiosity.

The universal coverage of the maps Sylvanus prepared for Ptolemy’s manual of global geography was constructed from a very local place, and reveals the local availability of island books or isolari in Venice, as well as nautical records of the Mediterranean and Adriatic that were available in abundance in the maritime city, which were carefully integrated within the system of parallels, meridians and equinoctial lines for readers to pour over, with attention to areas like Spain’s Mediterranean coast or Greek islands in the Adriatic, depicted by a similar accuracy reminiscent of charts, as are its inlets and bays.

Greek Island Sylvanus

Sylvanus illustrated the division between Africa and Asia, the origins of the  Nile and shores of the newly-mapped Red Sea for readers to consult, probably in relation to available maps, by means of a similar etching of graphic relief:

Africa and Origins of Nile

 

The material surface of Bernardus’ maps synthesized a range of semiotic conventions that viewers would have been quick to recognize as a combination of a material landscape and a map:  one of his Italian readers was quick to include images of the towns in the Marches in the map of Italy and the Adriatic, depicting both the towns of Monterubbiano and Moresco i in ways comparable to the iconic perspective views of cities.

 

Sylvanus' Adriatic

 

The additions suggest a dramatic increased in the graphic materiality of the map as a pictorial register.  Print are allowed men as Bernardus or fellow-engravers and editors of maps in Florence, Rome, and Antwerp to invest the map’s surface with new claims of legibility as a reproducible record.  But it is also very possible that Bernardus’ sustained engagement with a project of printing he hoped would be far more successful derived from the prominent status maps already enjoyed in other visual media.

The interest of maps as depictions reflected a deep appropriation of Ptolemy’s instructions to his own second-century contemporaries to craft a map “ad oculorum aspectum commensurabilis“–the transmission of this precept to later mapmakers to create a surface that would appeal to their readers’ eyes, if not also the tacit presuppositions for viewing a continuous space in a detailed and harmonious form.

5.  A tradition of fifteenth-century Venetian cartographers had incorporated nautical charts to illustrative or pictorial ends in inventive ways, in attempts to give greater expressivity and comprehensiveness to the Ptolemaic planisphere or nautical chart:   a 1448 world map designed with great care by Giovanni Leardo framed by the months of the year and astrological signs (Verona, Bibl. Civ., Ms 3119); Fra Mauro’s famous circular map uniquely synthesized Portuguese charts, a unique matter given that it was in fact commissioned for Portugal’s monarch, without a graticule; it recalls an ellipsoid world map of 1457 constructed on the principles “of cosmographers” without a uniform graticule, and filled with textual legends, fanciful iconography, and perspective city views.  None privileged the geometrical order of a uniformly continuous surface or a format of projection from terrestrial cartography, however, or bridged different semantic registers in the manner of Sylvanus’ maps.

The Ptolemaic model provided an authoritative basis to fashion a surface that could be readily scanned as a uniform distribution of expanse by around 1500, and in Venice shifted the attitudes of viewers to mapped space.  By the later fifteenth century, the Venetian Senate had commissioned the repainting of territorial maps of the lagoon of Antonio de’ Leonardi from his nephew Sebastian along parallels and meridians by “Ptolemy’s doctrine” that Isabella d’Este and others Isabella d’Este sent painters to copy, marvelling at its proportions and scale.  The painted map received praise as “così perfetta nelle sue misure [so elegant and well-proportioned]” that “diversi Principi [several princes]” had commissioned copies of it for their own enjoyment and pleasure before its 1577 destruction, Sansovino boasted among his catalogue of the city’s artistic treasures.[i]

Although the map is now destroyed, and cannot be pictured, it constituted something of a model for the multiple maps now present in the Palazzo Ducale, painted to replace it, and for the maps of the Veneto that Christoforo da Sorte created in its private chambers–as well as, perhaps, Egnazio Danti’s monumental remapping of the peninsula in colored paint.  The much-admired peninsular map may have provided a model for integrating the format of nautical charts with maps of geographic content by men like Sebastian Cabot, piloto for the Casa de la Contratacion in Seville who created a new world map–or the map-engraver and engineer Giacomo Gastaldi, who from 1546 synthesized multiple elegant wall-maps that refined cartographical expertise; Gastaldi’s work with the geographer Giovan Battista Ramusio led him to design comprehensively detailed pictorial wall-maps as that of South-East Asia.

 

gastaldi 1548

Gastaldi-prat of Asia

But we might also start from the 1511 modern map of the peninsula that Sylvanus designed:

Sylvanus Sexta Tabula with ms addition of city views

Did this lost expansive painted map of the lagoon that extended to the Adriatic and Tyrrhenian sea, and their islands, provide a model for uniting terrestrial and nautical maps that men such as Bernardus Sylvanus sought to generalize for a larger audience in printed form?

The reader of Sylvanus’ printed maps from Fermo sought to make the text his very own, adding his own qualitative views of the cities that he knew, in ways that register a distinct relation to the map as a continuous surface.

[i] Gallo, “Le mappe geographiche del Palazzo Ducale di Venezia,” Archivio Veneto ser. V, 32 (1943): 47-54. Sansovino, Venetia, citta nobilissima et singolare (Venice:  Iacomo Sansovino, 1581), fol. 122, “era una tavola d’Italia così perfetta nelle sue misure, che diversi Principi ne domandarono l’essemplare.”

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Filed under Angeliki Tsorlini, Carta Marina, engraved maps, Giacomo Gastaldi, globalism, Jacobo de' Barbari, Martin Waldsemüller, portolan charts, Renaissance engraving, two-color typography

Maps, Mapping, Globalism: Imaging the Ecumene’s Expanse

That most ancient of words, Oikumene, expanded from the Greek “oikos” to designate a dwelling or residence, or ecumene denoted less the technical abilities of mapping or tools for describing of the world than the demarcation of inhabited lands in which civilized people or members of the church existed:  but the divulgation and expansion of the notion of mapping abilities have in recent years, since the explosion of information databases and during intense globalization since the 1980s, extended the notion of the ecumene that has grown to extend beyond the map.  It increasingly is invested as a terms with ethical connotations to understand or foreground humanity’s relation to its environment–or retake the human from the map–at a time when virtually no part of the world is not inhabited.  Indeed, the possibility of drawing frontiers between an uninhabited and inhabited world–or of defining limits of the inhabitable world–is so diminished that the concept of bounding areas are not clear; the areas of the earth that are no longer inhabited, its “open spaces” or unsettled areas have catastrophically declined in the past twenty years.

But the continued interest we have in describing how we occupy the world, if not demarcating the boundaries of the world, is at the center of the data flows and databases we process in GIS and that increasingly lie at our finger tips.  The instant generation of maps of the inhabited areas of the world have paralleled the catastrophic decline since the 1990s, when a tenth of existing wildlife declined and the catastrophic losses of wildlife confirmed at the  IUCN World Conservation Congress:  the shocking fact that only 23 percent of wilderness remains doesn’t even include the future effects of global warming, the current crisis in history’s tragedies mankind is currently in the process of having created or on its way to create.  Indeed, the destruction of wilderness–what are deemed intact landscapes that are mostly free of human disturbance–has perhaps most radically changed the nature of the inhabited world.  Since the “Last of the Wild” map was first published in 2002, the loss of almost a tenth of formerly uninhabited lands in the last decade is the most rapid expansion of human settlement of the planet, with some 3.3 million sq km of once-uninhabited lands lost, of which 2.7 million sq km2 are considered globally significant–a loss of some carbon biomass in forests destroys a resource that offsets atmospheric CO2.

wild_infographic2-1-1-1024x768

But let’s return to maps, such realities being to painful for me to contemplate.  Even as the entire earth is now inhabited, much is to be gained in the concept of actively mapping expanse both by preserving an analytic relation to that image of expanse, too often rendered abstractly in computer-generated cartographical media, and encouraging an analytic relation to how the material contents of maps embody space.  Crafting an image of the inhabited world as a bound expanse enjoyed a somewhat neglected historical lineage as a form of knowing the nature of an inhabited world and of orienting viewers or readers to the expanding unknown from the Roman empire:  the considerable intellectual heft of the term inherited from ancients–Eratosthenes, Ptolemy, and Strabo–and its signification of the inhabited and inhabitable earth informed most Renaissance maps and atlases, in which practices of mapping gained new epistemic ends as mediating comprehensive knowledge.

The comprehensive genre of the atlas, an illustrated set of maps promising true global coverage of lands linked by seas, developed in concert with the knowledge that the inhabited world extended beyond earlier imagined confined, and borrowed an expansiveness previously limited to nautical cartography or mapping.  The description of the distance to the edges of the world, if inherited from antiquity, provided a model for understanding the nature of the discoveries for the educated audiences among whom the first maps of the terrestrial ecumene first circulated both in manuscript and print–from the illuminated codices produced in Florence to the massive twelve-sheet wall-map announcing the Columban discoveries that the erudite Martin Waldseemüller compiled in the early sixteenth century Strasbourg from the school at nearby Saint-Dié-des-Vosges.

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Waldseemuller-Map-631

The visual qualities of mapping, symbolized as an expansive landscape, cast the embrace of the inhabited world with qualities of perceptual transcendence over its variations and divisions.  Ancient geographic treatises included few maps; but mapping the ecumene created a relation of expanse and an observer’s eye in the late fifteenth century by organizing and ordering the globe’s inhabitation.  And although it’s odd to think of the ecumene as an inheritance of ancient geography that’s still employed, the inheritance mapping the inhabited earth resonates with Geographic Information Systems–although fashioning an image of the world’s geography has little of the ethical intent it seems to have enjoyed in both the ancient and early modern worlds.  When we daily orient ourselves to how space is inhabited on our computer screens, iPhones, or androids, we frame an image that bounds a record of how space is inhabited either to orient us to where we are going or how the presence of cars, people, bacilli, or weather defines the inhabit world.  Paradoxically, the growth of GIS technology has increased the manner of ways we can chart the inhabitation and presence of man in space, if it has not increased how we define its continuity, it has also provoked both a Renaissance of mapping and a crisis in the authority of the map as a representational record of the ecumene and its bound, as well as its bounded nature.

While the rest of this post isn’t exactly heavy lifting, but is stuff I’m still processing and finding my way around.

1.  The assemblage of maps in a sequence of global coverage was identified with the cultural distinction Ptolemy gave to the project of world-mapping on a graticule of meridians and parallels, to be sure, both compressing a growing sense of the world’s navigable expanse and indexing its toponymy along climactic zones.  The term ecumene challenged the mental imagination by encompassing local variety in a capacious global category, ordering a global map in a neatly bounded surface beyond the Indian Sea, and up to the limits of known land, in a feat of mental dexterity as much as precise or accurate map of exactly determined scale.  The lower boundary of the map copiously noted “terra incognita,” as later projections–and left it at that, as an expansive white space that exists beyond the sea and lakes of the moons, as this Florentine map includes, adopting the notion of an extensive northern ocean to frame the inhabited world–even while seeing the Indian Ocean as closed.

800px-Claudius_Ptolemy-_The_World

Indeed, even as the world grew more detailed and other continents were registered as inhabited, as in the Ortelian planisphere, the growth of regions of terra incognito expanded, as if to parallel the known regions which were designated by naturalistic landscapes:  the unknown regions of “America dive India Nova” were paralleled with the imagined “Terra Australis,” a later configuration of the mythical Java la Grande.

800px-orteliusworldmap1570

The ancient Greek astronomer and scientist Claudius Ptolemy proposed using terrestrial maps on geometrically derived parallels and meridians as tools of portmanteau-like capacity to comprehend terrestrial spaciousness, by segmenting the world’s inhabited surface by degrees of longitude.  The notion of mapping totality was particularly fertile for early map-readers a decade before 1492.  The tools for mapping the ecumene or inhabited world provided an ambitious compendium of global knowledge, although the geographic knowledge of the world was limited–and still was by the time of this world map, illuminated circa 1482:  although restricting the ecumene for modern eyes, its capacious reach extends south to inner Ethiopia and northward, beyond its broken frame, to embrace northernmost isles beyond Thule.  Rings of uninhabited islands indeed constituted, John Gillis has recently noted, part of the mental furniture on the boundaries of the inhabited world for most fifteenth-century men, and suggested a comforting bounding of the world that seemed to illustrate its protection and insulation, lying as it did between uninhabitable climactic zones and far-off seas.

The ethno-centered ancient term maintained a sense of charting the world’s recognizable inhabitants or those that mattered to the readers of maps:  so, in the Augustan age, Roman’s referred to the expanse of the empire as the ecumene, beyond which lived barbarians.  But even as it retained a bounded sense for Renaissance readers, the totalizing image of an ecumene provided a way to imagine the population of an expanse greater than lay in the ken of most–and to understand coherence within a world that included information from far-off lands, even if many fifteenth-century people lacked clear geographic categories of spatial division of an inhabited terrestrial expanse.  The edges of the earth were oddly clear for a period that suggests limited familiarity with expanse: the monsters and extraordinary riches found there were included in fifteenth-century editions of Ptolemy’s handbook of world geography, including elephants in the island of Taprobane, beyond India, trees that had leaves year-round, multitudes of serpents, and cannibals.  These were the signs of the world beyond what humans knew, and included the bare-footed gymnosophists of India.

The compendious divisions of this mental map in a sense informed an engraved world map printed as the sixth page of the 1493 Nuremberg Chronicle, or “Book of Chronicles,” a “universal” history that promised a temporal compendium of world history, embracing historical ages in order to be able depict the division of continents from its creation through after the recession of waters in the Noahic flood through the succession of worldly empires that Augustine and Orosius had famously described–a work that captured the early taste for engravings as mediating information in Renaissance Nuremberg.   Romans discussed their empire as the ecumene, imitating how Greek geographers discussed an ecumene at whose fringes lived fundamentally other foreign Peoples, outside the scope of human concern and beyond the limits of human inhabitability; the world-map in the Chronicle placed outside its borders the excluded races of  Cynocephali, one-footed Sciopods, reverse-footed Antipods, bearded women, and one-eyed cyclopean monsters.  These lay outside the three regions divided among Noah’s three sons Shem, Japhet and Ham, or ecumene, and outside its image of the inhabitable world where humans dwelled, but also reflected the new world that the recession of waters in the Noahic flood had revealed to human sight, and the projection of the world that its editor included registered the shock of the prospectus terrarum that the lessening of global waters worldwide revealed–and the ecumene it unveiled:

SECUNDA ETAS MUNDI

 

 

Hand-illuminated versions suggests significant curiosity in these creatures placed outside of the map’s ruled boundary who dwelled in a different space from the river-nourished environment of what one supposed to lie on the edges the habited world:

 

Secunda Aetas Mundi

 

 

The ecumene had of course already expanded dramatically by 1490 or 1493 that challenged thought about its both its boundedness and uniformity and cartographical forms to represent spatial expanse.  It continued to expand dramatically in the following years for readers of maps.  Similar monstrous races were included on its peripheries:  in the northern limits of Asia, a boundary of the inhabited world, even in Martin Waldseemüller’s learned Carta marina of 1516–both in response to literary sources and travelogues as well as the mental furniture of the bounded region of human habitability.  Many of these races were left off of the map as “an empirically known space,” for the very reason that they challenged and threatened a human space, and the boundaries of the world revealed by maritime exploration were unknown–even if sea monsters were increasingly banished from the more the edges and unknown areas of the more refined world maps, as the Carta marina.

 

Waldseemuller 1516 carta nautica

 

The consciousness of limits of habitability or human settlement was a graphic expression of Strabo’s mandate that geographers show the world’s inhabited part, as much as its inhabitants or populations to readers to satisfy curiosity and to respond to a need to describe its limits, as much as its totality:  “the geographer must describe the inhabited world in its known parts, neglect its unknown regions, as well as what is out of reach” (II, 5,5), placing a primacy on describing those parts of the world or communities in which humans live.  Although most fifteenth-century people did not easily domesticate the idea of an extensive space, let alone an undifferentiated expanse, picturing the unity and comprehensiveness of the ecumene became a basis for thinking about expanse, and comprehending difference:  the image of the ecumene in the Nuremberg Chronicle became a basis for continuing a rambling shapeless narrative grounded in a series of embedded or potted histories of place, each defined around an individual city and city view:  the ecumene was the landscape, if you will, in which each was situated.  There is often limited notation of a matrix of parallels and meridians in what might be called a readable fashion in early Ptolemaic maps:  it helped make space legible and material–or a sense that they are conventions of understanding the dramatic contraction of global space, but not indices of way-finding or marking place, as in these gores, identified with Waldseemüller’s school of cartography, ostensibly made for a small globe.

 

waldseemuller_map_found_4_7_2012

 

 

What has happened to the notion of the ecumene?  Even as the Ptolemaic ecumene was expanded, the community embraced in the map grew, rather than being abandoned, if New Worlds were processed into a map that reduced the prominence of Europe at the center of the inhabited world.  But the expanse of the ecumene held together, as it were, a sequence of regional maps, partly because the concept contained the promise that the whole world could be divided and known in synoptic form in a series of synoptic images that reconciled spatiality and territoriality.  Although mapping the continuity of expanse undergirded Renaissance cartographical images, the precision offered considerable wiggle-room, as it was limited only to the known.  But the division of space into bounded records of expanse were influential; the “chorographical” map of community became a counterpart of the totalizing coverage of a geographic projection.  To be sure, such maps responded to the diversity of ecumene that were discovered.  And maps provided models to mediate culturally fragmented collectivities, and fashion coherence across confessionally-divided communities– as the national map Oronce Fine designed of France to the French national atlases of the late sixteenth century to the English maps of Christopher Saxton, or Philip and Peter Apian’s maps of Central Europe, or a cycle of maps of the Italian peninsula that Egnazio Danti organized for a corridor leading to the apartments of Catholic Pope, discussed in an earlier post.  The coherence of each of these regions provided a sort of microcosm to the ancient geographic ecumene as it gestured to the wold that Romans civilized.

 

2.  The second half of this blogpost shifts focus.  In ways that less linked to cartographical models, it uses the notion of an ecumene to interrogate the survival of a  mapped global space in more modern mapping techniques.  We now lack similar boundary lines, of course, and measure contact among its regions rather than being awed by the immensity of the world’s expanse.  But the same term gained an ethical heft  in Enlightened thought to express a mandate for cosmopolitans to inhabit the world to become citizens of its entire expanse and cultures.  This shift in meaning, often thought of as a rupture, suggests continuities with the contemplative uses of globes for ancients as signs of learning or stoic remove.  The modern recuperation of the ecumene, distinct from its sense of the community of Christians (inherited from the Enlightenment) or the community of mankind is more striking as a relation to a lived environment, in ways that recuperates the ontological category of ecumene in order to describe and refer to the “humanized” world in which we now live–whose surface is more fully inhabited than ever before, but its nature shaped and informed by humanity both in regional environments and as a whole.

Augustin Berque has emphasized the benefits of attending to a relation, described by Tissier, between man and the planet in his 1993 article in the journal Persée, striking for how they dispense with the very category of a map if provocative for how they recuperate the ancient term in an ethical sense.  The term “ecumenical” oriented the term to the continuity in a community of believers.  But the ethos recuperated by Berque refers to what is human in the world, and a way of being, stripped of a fixed ethnocentric perspective.  By locating the “oikumenal” in terms of human geography stripped of a cartographical foundation, his sense eerily prefigures the images of the inhabited world that are both the benefits and costs of GIS as a basis for judging one’s own relation to the global world.  Berque has removed this ancient term of encyclopedic or positivistic coverage as a material register of geographic toponomy and the ancient craft of map making that embodied a fixed relation to the world.  His construction of an ecumene encompassing human society and its relation to the environment melds nature and culture in ways similar to the ancient term in its ethical connotations.  But his usage oddly dispenses with its graphic construction in favor of a global consciousness:  for in calling attention to the “ecumene,” has removed mankind’s relation with the earth’s surface is removed from a simple demonstrative function of the map:  much as the medium of GIS  defines the inhabitation of the world from one slant or subject, Berque asks us to embrace the multiple effects of mankind on the planet.

Berque believed that with the humanization of the planet complete, and the physical planet dominated by the effects of human life, more emphasis should be placed on a phenomenological analysis of the relation of subject an ambient by this Greek term, now removed from mapping practices to embrace human geography as a tool to consider the relation of man and his [made] environments. Putting aside the value of Berque’s point, the disposition of this philosophical standpoint  reflects the deconstruction of the privileged place of the terrestrial map and of geographic knowledge in GIS, and the image it perpetuates of the inscription of a human geography.  The relation of man and his planet–or the effects of man on the planet–are now the scope of a wide range of GIS maps of human habitation and Google Earth, or maps of influenza, infections and disease in data visualizations or geographic metadata catalogues, whose aim shift from physical geography to the place of mankind in it.  Increasingly, we are prepped to see the world nightly with a false immediacy of the nightly news, less focussed on territorial boundaries than a token of comprehensive coverage, prepped for consumption much as the newscasters who present an account of the “daily novelties” are prepped and outfitted in the apparatus of a news room.

 

Newscaster prepping.png.JPG

 

As put it eloquently (and cleverly) by Bruno Latour and friends, our ideas of territory so clearly derive from maps that the digital ubiquity of mapping places us into a new relation to territory:   we now navigate not based on “some resemblance between the map and the territory but on the detection of relevant cues . . .  to go through a heterogeneous set of datapoints” by which to move from different posts to gain new bearings.  We are always navigating a new relation to territory, or understand territorial models, not assuming defined and predetermined boundaries.  This notion of the environment is based on an ability to read signs of its inhabitation and peopling, rather than with reference to previously mapped territories, and is rooted on the ability to navigate by using maps on a screen, rather than on paper–in which the lack of resemblance indeed has further purchase (and persuasive power) as a gain in both certainty and objectivity.

 

3.  The analytic nature of the reader’s relation to GIS maps is less based on embodying place or expanse in a cartographical manner, because it is not rooted in mimetic qualities.  For the map, in much GIS, is used essentially as the primary field to encrypt variations in data, and removed from any pictorially descriptive function.  Put better, the map is something of a found object, a template, an objective construction in which we sort out the real information that is displayed upon it in an appealingly objective fashion, but one that lacks an orientational power rooted in mimetic claims and indeed turns away from making any actual mimetic claims:

 

usmap9

Indeed, the underlying positivism of the objectivity of the map is recycled in most visualizations that are rooted in GIS.  If modernity, as Doreen Massey put it, involved “a particular hegemonic understanding of the nature of space itself, and of the relation between space and society,” drawing expanse on multiple computational platforms in GIS has decoupled space from a precise location:  we now know from a true “view from nowhere.”  The differentiation of terrain or local constructions of space are of less interest than the projection of meaning on a map that is treated as a screen, and several significant local markers may be absent or not noted.  Shifting scale by moving a cursor does not create a more readable space, but provides a very odd reframing of space as a unit that is not comprehended by the reader, but able viewed simultaneously at multiple scales of changing parameters, zoomed into and out of, and adjusted on a digitized scale bar. Our current National Research Council argues in its spatial literacy report on spatial thinking that “the important thing is that they allow for the spatialization of data and use a range of types and amounts of data,” lending primacy to the readability of data over the analytic or representational basis of map-making.

What is physical geography, after all, in many of these maps?  The prime mandate is to map one’s relation to the environment in a readable fashion, rather than to encode layers of local topography or meaning, and to streamline the map to allow its reconfiguration in different datasets that prepare for readability, rather than granularity or density of meaning.  Again, this is based not in mimesis, and no longer based on the notion or mimetic projection of territory:

 

MacArthur Freeway 11-00

Children's Hospital 11-51

If we speed this up, to look at a sort of time-stop photography of cabs in San Francisco’s downtown area, as did Stamen design in a pioneering map that combined aesthetics and the abundant database of the surveillance operations of Google Maps, and is based on readings taken from the GPS data of the Yellow Cab Company of San Francisco, available also as a film:

Stamen Cabs

Or, in Shawn Allen’s map/photo, which resembles a direct transcription of the taxicab scene in downtown San Francisco on June 15, 2012:

Shawn Allen's map:photo

Does an impoverishment of spatial literacy or toponymy result from such containers of datasets that use maps as formats?  The omniscience and transcendence of the map viewer is immeasurably increased, but the viewer is the receptacle of data, as much as the perceiver of the scene:  new currents are configured and new flows revealed, as data from a variety of sources are richly encrypted into the surface of any given image, compressing the sort of media to which we might have access to a single screen.  One has a different sort of relation to a screen than to a variegated surface, reading a way of configuring information in different ways:  but the difficulty with the screen in particular is its lack of a sense of spatial embodiment. Compare it to an earlier map of the same region, not at all sparing with information but bending backwards to compress legible content within a description of the city’s environment:

sfharbor

These are, perhaps, essentially different modes of data compression, based not only on distinct tacit presumptions, with one angled toward data flows, rather than to the ostensible objectivity of a perceptual model.   But the difficulty to embody data flows can generate an oddly 2-D superficiality that forsakes the very quality transcendence to which earlier ecumene aspired.  Data-streams provide a selective mapping that illuminates one angle of analysis, as it were, rather than aspiring to process an image of the entire city’s or world’s actual inhabitation.

Let’s however insist on being more concrete.  When used to display shifts in a census, the map below displays data removed from topography or centers of population density, and is a data visualization without refined conventions to process its content or meaning for viewers, even if its meaning is quite serious and subject quite human, because it displays information on a static template with little interpretive key–since this map is less of an autonomous and self-standing unit of meaning than a map that demands to be read in reference to familiarity with a map of the distribution of the state’s population:

CO2 emissions

 

The above map of CO2 emissions of Northern California households elegantly foregrounds one specific reading of the relation of man to the environment. The challenge raised by such an elegant map is to retain communicative flexibility of the conventions of terrestrial mapping, however.  In any GIS map, there is the anger of emptying the format of project from content such as topographic variations, specific local detail, or the dynamic relations of space and habitation within a map:  the conventions of the format gains an iconic or symbolic register alone, in short, and is considerably impoverished as a description of terrestrial habitation when it serves as a field to display data flows or project a database.  One issue is to combine the data with how the analytic framework of the map integrates word and image or creates a structural distribution–something like the poetics of mapping–rather than employ maps as a passive container for spatial information instead of actively creating a way of thinking about space. The mapping of the results of a census regularly lack a sense of topographic variation or differentiation of urban and rural population which would render it more meaningful, and give a plasticity to its already remarkable contents as readable content.  This partly lies in the lack of a dynamic relation between the visual field of the map and its reading, as in this map of the regional variations in the India’s regional population per square kilometer:

 

dastes_F2

 

The map does not exploit its own conventions of orienting readers to space or expanse.  But GIS mapping offers a significant range of angles by which to read and explain its content.  The relevance of clarifying readers’ relations to the environment are in fact pressing, as revealed on this interactive map–which even includes an option for the reader to learn in detail what s/he can do to help:

 

Scenarios of Global Warming

 

At the same time as this pessimistic picture of the actual eventualities of climate change in the age of the anthropocene, the radically shifting nature of a world which is no longer shaped by proximity, or challenged by distance.  The map of internet penetration suggests, rather than a new map of inequalities alone, the new obstacles to the penetration and responses to messages worldwide, and, no doubt, contributed to the difficulty of the transport of needed goods and medical supplies to western Africa during the current epidemic of Ebola, which seems to have left populations scarred by the difficulty in transatlantic communication, as much as the lack of adequate maps, as OSM-H has shown, of adequate mapping on the ground.

 

2000px-InternetPenetrationWorldMap.svg

 

Indeed, the map of internet penetration, for all its unpleasant echoes of a colonializing perspective, where first-world countries receive greatest coverage, reveals the extreme difficulties of penetration of all of the coastal countries of West Africa–unlike Nigeria–where the highly contagious virus has proved most difficult to be contained, and information about  the virus less able to be widely disseminated.

Are the edges of the penetration of the internet the most vulnerable edges of the inhabited world, and as the edges of the accessibility and sharing of human information the most vulnerable to cataclysm?

 

4.  To some extent, this takes us back to Berque’s notion of the ecumene.  But the relative thin-ness of encrypting data projection on the map is so less fine-grained to impoverish the relation between reader and map or registers of engaging readers:  the granularity of the map is particularly great perhaps because the map’s visual qualities are less closely joined with its textual ones, or the hypertext only uses the map as a static schema. There seems the danger of how maps direct our attention to spatial variations and complexity with the proliferation of maps as visual media across different venues and platforms, and a dissipation of the authority of demarcating expanse or of compacting data in a uniform surface.  Perhaps this recalls Berque’s notion of the ecumene as a set of relations to the environment, which can be read in different ways rather than in one way.

The question of habitation has become turned, like a prism, to illuminate new points of view and angles of perception, a topography of habitation indeed seems beside the point.  After all, there are no real areas of the globe that are not inhabited, and the questions of orienting individuals to space seem more pressing than ever on ethical, ecological, and moral grounds alike–if not of just making sense of the effects with which man inhabits space. In a somewhat ponderous post, let’s offer a comic conclusion, however, rather than carping about media for mapping in an age of digital reproduction and increasing vectors of data flow.  The GIS map has become a versatile demographic tool to reframe questions and reveal spatial links, possible vectors of influence or pathways of causation, and indeed maps of emotions or violence.  The question is at root what sort of remove it places the map reader to interpret those vectors on its surface.  There is a temptation to deflate the authority of the descriptive value of such a matrix for its lack of fine grain.  Amidst the attempt to map the Arab Spring there was the inevitable  GIS irony of naturalizing political movements with the ephemerality of a weather map–more a mental map of what the media presented, to be sure, rather than a map designed to orient its content to a reader practiced in interpreting a map’s construction or its conventions.  The map has the value for its viewers of an illusion of transparency and a medium of omniscience:

 

 

middleeast_map21_1829864a

 

Or GIS-inspired variations on sabre-rattling from the American right, which was openly alarmist (if not antic) in tone, against a backdrop from Wikipedia commons:

 

ZIO_middle_east_map_jpg_big_1

 

These pseudo-news maps come from the GIS family of signs, even if they are not based on actual data.  They orient viewers with a wiki-like remove. It makes sense that at this point ecumene denotes more of an ethical stance to describe man’s relation to the environment, shifting from to what that process of inhabitation might mean; there is no demand for graphically rendering the inhabited world, but rather the ways mankind inhabits the earth and has filled and marked its space.  But there is a loss of mapping habitations. And so map making in the flexible media of GoogleMaps is no longer an expandable portmanteaux of fine grain, but rather a matrix of data streams where one charts multiple consequences of inhabitation rather the local terrain.  If we no longer have Sciopods outside of our human realm, we lose a sense of an ethics of mapping or even of relating to maps when we dispense altogether with practices of map-making.

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Filed under anthropocene, data visualizations, globalism, Google Maps, metageography, Ptolemaic geography