Gerhard Kremer, also known as Gerardus Mercator, was a renowned cartographer and geographer who lived during the 16th century. Mercator was a prolific mapmaker who revolutionized the world of cartography with his creation of the Mercator Projection, a cylindrical map projection that allowed mariners to navigate the seas more efficiently. Synonyms for Gerhard Kremer might include Gerardus Mercator, the great geographer, the father of modern cartography, the master mapmaker, or the inventor of the Mercator Projection. Regardless of how he is referred to, there is no denying that Gerhard Kremer's contributions to geography and navigation have had a significant impact on the world as we know it today.