The resulting maps ranged widely in shape and appearance, some being circular, others square. Some, often oriented to the north, attempted to show the whole world in zones, with the inhabited earth occupying the zone between the equator and the frozen north. Most of the maps, however, like the Hereford Mappa Mundi, depicted only that part of the world which was known in classical times to be inhabited and they were oriented with east at the top. Many were purely schematic and symbolic, showing a T, representing the Mediterranean, the Don and the Nile, surrounded by an 0, for the great ocean encircling the world, sometimes with a fourth continent being added. More than simple geographical shorthand, such maps were also meant to symbolise the crucifixion, the descent of man from Noah's three sons and the ultimate triumph of Christianity.
A few maps of the inhabited world were much more detailed, though keeping to the same broad structure and symbolism. Paradise was shown at the very top, or extreme east of the map. Traces of the maps' classical origins could regularly be seen in, for instance, the continued depiction of the provincial boundaries of the Roman Empire (which are partly visible on the Hereford map) and for many centuries by the island of Delos which had been sacred to the early Greeks being the centre of the inhabited world. It was only from about 1120 that Jerusalem took Oclos' place as the focal point of the map, as it does on the Hereford Mappa Mundi. Palestine itself was usually enlarged far beyond what, on a modern map, would have been its actual proportions. This was in order to match its historical importance and to accommodate all the information that had to be conveyed. The amount of space dedicated to the other parts of the world varied according to their traditional historical or biblical importance and the preoccupations of the author of the text which the map illustrated. Because of this, space devoted to the author or patron's homeland was often much exaggerated when judged by modern standards, as in the case of England, Wales and Ireland on the Hereford Mappa Mundi.
Most of these earlier maps were book illustrations, none were particularly big and the maps were always considered to need textual amplification. They were never intended to convey purely geographical information or to stand alone without explanatory text. They and the texts which they adorned continued to be copied by hand until late in the fifteenth century and are to be found in early printed books.
The 'Psalter' World Map, c.1260. Probably a copy of the mapp prepared for Henry III's audience chamber at Westminster. God dominates the world and the 'Marvels of the East' occupy the lower right edge of the map, as they do on the Hereford map. The coastlines and geography show considerable differences in detail, however. (B.L. Add. MS 28681, f.9). Wall maps From about 1100, however, we know from contemporary descriptions in chronicles and from the few surviving inventories that larger world maps were produced on parchment, cloth and as wall paintings for the adornment of audience chambers in palaces and castles as well as, probably, of altars in the side chapels of religious buildings. Often a 'context' for them would have been provided by the other secular as well as religious surrounding decorations. Together they would have provided a propaganda backdrop for the public appearances of the ruler, ruling body, noble or cleric who had commissioned them, and some may have been able to stand alone as visual histories.
A separate written text of an encyclopaedic nature, probably written by the map's intellectual creator, however, was still intended to accompany many if not all these large maps and one may originally have accompanied the Herefore world map. For many maps continued to be used primarily for educational, including theological, purposes. The Hereford map, as an inscription at the lower left corner tells us, was certainly intended for use as a visual encyclopaedia, to be 'heard, read and seen' by onlookers. These large maps did have further uses. A note on one of the most famous of them, the Ebstorf, says that it could be used for route planning. As G. R. Crone demonstrated, the Hereford also contains sequences of the more important place names along some major thirteenth century commercial and pilgrimage routes. On a world map, though, as opposed to the strip itinerary maps produced by Matthew Paris in about 1250, the route planning could only have been very approximate and very much incidental to the main purposes.
These maps seem largely to have been inspired by English scholars working at home or in Europe. They reached their fullest development in the thirteenth century when Englishmen like Roger Bacon, John of Holywood (Sacrobosco), Robert Grosseteste and Matthew Paris were playing an inordinately large part in creative geographical thinking in Europe. Because of the maps' size, they were able to include far more information and illustration than their predecessors. They retained and expanded the geographical and historieal elements of the older maps - coastlines, layout and place names on the maps frequently reveal their ancestry - but to them they added several novel features. There was an enhanced Christian emphasis through the decoration. Christ would, for instance, be shown dominating the world, or the world might even be depicted as the actual body of Christ. In addition, there seems regularly to have been a garbled reference in word and/or picture to the survey of the world supposedly undertaken at the behest of Julius or Augustus Caesar.
The most striking novelty, however, was the vastly increased number of depietions of peoples, animals, and plants of the world copied from illustrations in contemporary handbooks on wildlife, commonly called bestiaries and herbals. In most, if not all of these maps, the strange peoples or 'Marvels of the East' are shown occupying Ethiopia on the right (southcrn) edge, as on the Hereford map. More space was also found for current political references and information derived from contemporary military, religious and commercial itineraries. Inscriptions of varying lengths amplified the pictures and sometimes contained references to their sources. Although the maps were still dominated by biblical and classical history and legend, most other information seems to have been acceptable and was accommodated within the traditional framework.
Mentions in contemporary records and chronicles, such as those of Matthew Paris, make it plain that these large world maps were once relatively common. Exposure to light, fire, water, and religious bigotry or indifference over the centuries has, however, led to the destruction of most of them. Today, the earliest survivor, dating from the beginning of the thirteenth century, is a badly damaged example now in Vercelli Cathedral, probably having been brought to Italy in about 1219 by a papal legate returning from England. Much better preserved, until its destruction in 1943, was the famous Ebstorf world map of about 1235. Far larger than the Hereford Word Map and much more colourful, it was probably created under the guidance of the itinerant English lawyer, teacher and diplomat, Gervase of Tilbury. The world was shown as the body of Christ and much space was devoted to the political situation in northern Germany: an area of particular concern to the Duke who may have commissioned it.
At about the same time that this map was being created, Henry III, perhaps after consultation with Gervase, who had visited him in 1229, commissioned wall maps to hang in the audience chambers of his palaces in Winchester and Westminster. Both are now lost but it seems quite likely that the so-called 'Psalter Map', produced in London in the early 1260s and now owned by the British Library, is a much reduced copy of the map that hung in Westminster Palace. We know from Matthew Paris that the Westminster map was copied by others, and it is likely to have had a lasting influence even though the original was destroyed in 1265. It is difficult to account otherwise for the striking similarities in detailed arrangement and content between the Psalter world map, the recently discovered 'Duchy of Cornwall' fragment (probably commissioned in about 1285 by a cousin of Edward I for his foundation, Ashridge College in Hertfordshire) and the Aslake world map fragments of about 1360.