The Travels of Marco Polo — Volume 1 by Marco Polo and da Pisa Rusticiano

knowledge of the Earth’s surface, that one might have expected his book to have had a sudden effect upon the Science of Geography: but no such result occurred speedily, nor was its beneficial effect of any long duration. No doubt several causes contributed to the slowness of its action upon the notions of Cosmographers, of which the unreal character attributed to the Book, as a collection of romantic marvels rather than of geographical and historical facts, may have been one, as Santarem urges. But the essential causes were no doubt the imperfect nature of publication before the invention of the press; the traditional character which clogged geography as well as all other branches of knowledge in the Middle Ages; and the entire absence of scientific principle in what passed for geography, so that there was no organ competent to the assimilation of a large mass of new knowledge. Of the action of the first cause no examples can be more striking than we find in the false conception of the Caspian as a gulf of the Ocean, entertained by Strabo, and the opposite error in regard to the Indian Sea held by Ptolemy, who regards it as an enclosed basin, when we contrast these with the correct ideas on both subjects possessed by Herodotus. The later Geographers no doubt knew his statements, but did not appreciate them, probably from not possessing the evidence on which they were based. [Sidenote: General characteristics of Mediæval Cosmography.]