World War I involved 32 nations from 1914 to 1919. It redrew the world map and reshaped many borders in Europe. The collapse of the Russian Empire created Poland, the Baltics, and Finland.

The journeys of 15th- and 16th-century European explorers are depicted on Cantino’s map including Vasco da Gama’s first voyage in search of a sea route to India (1497-99) and the “discovery ...