Wallachia, Serbia, Bulgaria, Romania.
Gerard Mercator (1512--94) was born in Rupelmonde in Flanders (Belgium). His given name was Gerard de Kremer or Cremer. "Mercator," meaning "merchant," is a Latinized version of his Flemish last name. He studied philosophy and theology at the University of Leuven, and developed an interest in astronomy and mathematics. He produced his first map, of Palestine, in 1537. He went on to create numerous maps and globes in the course of his long career and is best known for his invention of the Mercator map projection. In 1554 he moved from Louvain to Duisburg (present-day Germany...