Note 21 — THE LEARDO MAP OF THE WORLD 1452 OR 1453

This Latin translation of Ptolemy’s Geography was begun by the Byzantine scholar Emmanuel Chrysoloras and completed by Jacopus Angelus in 1410; manuscripts of this translation were accompanied by maps, which, however, differ from the well-known maps in the Ptolemaic atlases of the late fifteenth and sixteenth centuries. The latter were the work of Dominus Nicolaus Germanus, known as Nicholas Donis. See A. E. Nordenskiöld, Facsimile Atlas to the Early History of Cartography, transl. by J. A. Ekelöf and Clements R. Markham, Stockholm, 1889, pp. 9-10.