Historical Events In October - 21
Tuesday, 21 October 2025
0310 St Eusebius ends his reign as Catholic Pope on October - 21.
0335 Constantinople emperor Constantine the Great rules laws against Jews today in history.
0686 Conon begins his reign as Catholic Pope on this day in history.
1096 Today in history sultan Kilidj Arslan of Nicea defeats 1st Crusaders
1187 On October - 21 alberto de Morra elected as Pope Gregorius VIII (1/ / 187)
1492 Columbus lands on San Salvador Island today in history.
1496 Emperor Maximiliaans daughter marries Spanish crown prince Johan of Arago/ hilip de Blank marries Johanna "the Waanzinnige" of Aragon on October - 21.
1512 Martin Luther joins the theological faculty of the University of Wittenberg on October - 21.
1520 Today in history magellan entered the strait which bears his name
1520 Today in history ferdinand Magellen arrives at Tierra Del Fuego (Pacific Ocean)
1553 On October - 21 volumes of the Talmud are burned