21st » Ferdinand Magellan discovers a strait now known as Strait of Magellan.
21st » João Álvares Fagundes discovers the islands of Saint Pierre and Miquelon, bestowing them their original name of "Islands of the 11,000 Virgins".
Famous Birthdays on October in 1520
5th » Alessandro Farnese (cardinal) named Alessandro Farnese, Italian cardinal (d. 1589)