the big 10 explorers By 6blec Oct 12, 1492 Columbus finds the Americas 1497 cabot discovers new-foundland 1502 America was named after Amerigo Vespucci 1513 ponce de leon discovered the coast of Florida 1513 balboa discovers the pacific ocean Sep 26, 1519 Ferdinand Magellan discovers the strait of Magellan 1521 Cortes conquers Aztec emperor 1532 Pizarro conquered the Inca empire 1540 Coronado discovers the grand canyon in Arizona May 8, 1541 De Soto explores the Mississippi river