At the beginning of the Middle Ages and down to the fifteenth century the cartography of the Greeks, which had reached its summit in the work of Ptolemy, was entirely unknown in Europe; while the early Greek conceptions (those of the Ionian school) of the disc of the earth or “œcumene” as a circle (called by the Romans “orbis terrarum,” the circle of the earth) round the Mediterranean—and externally surrounded by the universal ocean—had persisted through the late Latin authors, and probably also through Roman maps. At the same time Parmenides’ doctrine of zones (cf. vol. i. pp. 12, 123) remained prevalent owing to its enunciation by Macrobius, and maps exhibiting this doctrine were common until the sixteenth century. These two conceptions became the foundation of the learned view and representation of the world, and consequently also of the North, throughout the greater part of the Middle Ages. It was the age of speculation, not of observation. The Scandinavians were the first innovators in geography, by going straight to nature as it is, unfettered by dogmas. The Italian and Catalan sailors followed later with their portulans (sailing-books) and compass-charts.

Map of the world from Albi in Languedoc, also called
the Merovingian map (eighth century). The east is at the
top,the Mediterranean in the middle, and the universal
ocean outside, with its three bays: the Caspian Sea, the
Persian Gulf and the Red Sea

Oldest mediæval maps
The wheel-map type

We find what is perhaps the oldest known Christian map of the world (cf. vol. i. p. 126) in the “Christian Topography” of Cosmas Indicopleustes.[162] An attempt is made to combine the Roman classical view of the world, as lands grouped round the Mediterranean, with Cosmas’s pious conception of it as formed on the same rectangular plan as the Jews’ tabernacle. A map of the world of somewhat similar form is found in a MS. (by Orosius and Julius Honorius) of the eighth century, preserved in the library at Albi in Languedoc. But these attempts must be regarded as accidental. Typical of that time were the so-called wheel- or T-maps, the shape of which was due especially to Isidore Hispaliensis (cf. vol. i. pp. 151, ff.). The circular Roman maps of the world seem already to have had a tendency to a tripartition of the world: Europe, Asia and Africa. Sallust (in the “Bellum Jugurtinum”) indicates something of the sort, and Orosius’s geographical system seems to be founded upon a map of this kind. In St. Augustine we first find the division of the T-map clearly expressed. This dogmatic-schematic form was fixed by Isidore, according to whom the round disc of the earth surrounded by the outer ocean was to be compared to a wheel (or an O), divided into three by a T.[163] Mechanical map-forms after this prescription (cf. vol. i. pp. 125, 150) were common during the whole of the first part of the Middle Ages until the fourteenth century; indeed they circulated and exercised influence far into the sixteenth; but sometimes, in accordance with the four corners of the earth in the Bible, the maps were given a square form instead of a round. In spite of the fact that most authors, among them Isidore himself, expressly declare that the earth had the form of a globe, this does not seem to have been anything more than a purely theoretical doctrine, for in cartographical representations, through the whole of the Middle Ages to about the close of the fifteenth century, there is never any hint of projection, or of any difficulty in transferring the spherical surface of the earth to a plane, which had been so clearly present to the minds of the Greeks.

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Beatus map, from Osma, 1203. The east is at the top

Northern Europe on Heinrich of Mainz’s map, at Cambridge (1110)