Today in History: Christopher Columbus
Today in History–August 3–the Library of Congress features Christopher Columbus, who set sail for what would later be known as the new world on this day in 1492. Columbus had the most modern maritime tools on his ship, including a mariner’s compass, an astrolabe, a cross-staff, and a quadrant and, quite possibly, the popular mariner map Ptolemy’s Geography or Cosmography. A little…
