May 4 » Religious reformers John Wycliffe and Jan Hus are condemned as heretics at the Council of Constance.
July 6 » Jan Hus is condemned by the assembly of the council in the cathedral as a heretic and sentenced to be burned at the stake. (See Deaths section.)
August 2 » Thomas Grey is executed for participating in the Southampton Plot.
August 21 » Henry the Navigator leads Portuguese forces to victory over the Marinids at the Battle of Ceuta.
October 25 » Hundred Years' War: Henry V of England, with his lightly armoured infantry and archers, defeats the heavily armoured French cavalry in the Battle of Agincourt.
March 4 » Explorer Christopher Columbus arrives back in Lisbon, Portugal, aboard his ship Niña from his voyage to what are now The Bahamas and other islands in the Caribbean.
May 4 » Pope Alexander VI divides the New World between Spain and Portugal along the Line of Demarcation.
July 12 » Hartmann Schedel's Nuremberg Chronicle, one of the best-documented early printed books, is published.
November 3 » Christopher Columbus first sights the island of Dominica in the Caribbean Sea.
November 18 » Christopher Columbus first sights the island now known as Puerto Rico.
November 19 » Christopher Columbus goes ashore on an island called Borinquen he first saw the day before. He names it San Juan Bautista (later renamed again Puerto Rico).
When copying data from this family tree, please include a reference to the origin: Peter John Oswald, "Pop Oswald Tree", database, Genealogy Online (https://www.genealogieonline.nl/pop-oswald-tree/P33165.php : accessed April 30, 2025), "Frederick Iii of HABSBURG (1415-1493)".
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