Before revision: upright=1.4|A medieval depiction of the Ecumene (1482, Johannes Schnitzer , engraver), constructed after the coordinates in Ptolemy's Geography and using his second map projection In cartography, a map projection is any of a broad set of transformations employed to represent the curved two-dimensional surface of a globe on a plane.
After revision: upright=1.4|A medieval depiction of the Ecumene (1482, Johannes , engraver), constructed after the coordinates in Ptolemy's Geography and using his second map projection In cartography, a map projection is any of a broad set of transformations employed to represent the curved two-dimensional surface of a globe on a plane.