Gerardus Mercator (1512-1594) studied at the ancient University of Louvain, then Netherlands, now Belgium. He published his first terrestrial globe around 1536, which introduced new concepts for navigation. The oceans and seas were covered with 'rhumb-lines', which assisted in setting a course. The 'Mercator' projection translated a spherical chart onto a two-dimensional sheet of paper....so revolutionary, it was used until very recently.
5.75 x 8.25"