February 15 » While on board the Niña, Christopher Columbus writes an open letter (widely distributed upon his return to Portugal) describing his discoveries and the unexpected items he came across in the New World.
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.
September 9 » Battle of Krbava Field, a decisive defeat of Croats in Croatian struggle against the invasion by the Ottoman Empire.
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).
March 27 » Spanish explorer Juan Ponce de León reaches the northern end of The Bahamas on his first voyage to Florida.
June 6 » Battle of Novara. In the Italian Wars, Swiss troops defeat the French under Louis II de la Trémoille, forcing them to abandon Milan; Duke Massimiliano Sforza is restored.
August 16 » Battle of the Spurs (Battle of Guinegate): King Henry VIII of England and his Imperial allies defeat French Forces who are then forced to retreat.
September 9 » James IV of Scotland is defeated and dies in the Battle of Flodden, ending Scotland's involvement in the War of the League of Cambrai.
September 25 » Spanish explorer Vasco Núñez de Balboa reaches what would become known as the Pacific Ocean.
October 7 » War of the League of Cambrai: Spain defeats Venice.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P12152.php : accessed April 30, 2025), "Antoinette de Bourbon-Vendome Duchess of Guise (1493-1583)".
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