Cosmas Indicopleustes (i.e. traversing India), an Egyptian monk, living probably about the middle of the 6th century. He visited as a merchant Egypt, India, and other Eastern countries, and wrote a work, entitled Χριστιανικὴ τοπογραφία, in which he undertook to substitute for the pagan geography of the ancients a new Christian system of geography, based upon all kinds of delusions. His work is contained in the second volume of Montfaucon's Collectio nova patraum Gr. (Paris, 1707).