Then followed restless times, with roving warlike tribes in Central Europe. The peaceful trading communication between the Mediterranean and the northern coasts was broken off, and with it the fresh stream of information which had begun to flow in from the North. And for a long time men chewed the cud of the knowledge that had been collected in remote antiquity. But Greek literature was more and more forgotten, and it was especially the later Roman authors they lived on.
Map of the World from a ninth-century MS. (in the Strasburg Library)
CHAPTER IV
THE EARLY MIDDLE AGES
Thus it came about that the geographical knowledge of later antiquity shows nothing but a gradual decline from the heights which the Greeks had early reached, and from which they had surveyed the earth, the universe and their problems with an intellectual superiority that inclines one to doubt the progress of mankind. The early Middle Ages show an even greater decline. Rome, in spite of all, had formed a sort of scientific centre, which was lost to Western Europe by the fall of the Roman Empire. To this must be added the introduction of Christianity, which, for a time at any rate, gave mankind new values in life, whereby the old ones came into disrepute. Knowledge of distant lands, or of the still more distant heavens, was looked upon as something like folly and madness. For all knowledge was to be found in the Bible, and it was especially commendable to reconcile all profane learning therewith. When, for instance, Isaiah says of the Lord that He “sitteth upon the circle of the earth” (i.e., the round disc of the earth), and “stretcheth out the heavens as a curtain, and spreadeth them out as a tent to dwell in” [xl. 22], and that He “spread forth the earth” [xlii. 5, xliv. 24], and when in the Book of Job [xxvi. 10] it is said that “He has compassed the waters with bounds, where light borders on darkness,” such statements did not agree with the doctrine of the spherical form of the earth; this was therefore regarded with disfavour by the Church; the circular disc surrounded by Ocean, which was the idea of the childhood of Greece, was more suitable, and according to Ezekiel [v. 5-6] Jerusalem lay in the centre of this disc. It was inevitable that knowledge of the earth and of its farthest limits should be still more crippled in such an age, and this is especially true of knowledge of the North.
Cosmas’s Map of the World. The surface of the earth is rectangular and surrounded by ocean, which forms four bays: the Mediterranean on the west (with the Black Sea), the Caspian above on the right, the Red Sea, and the Persian Gulf below on the right. The Nile (below), the Euphrates and the Tigris flow from the outer world under the ocean to the earth’s surface