January 1 Juw Dekama elected potentate of Frisia January 25 Alfonso II replaces his father as king of Naples May 3 Jamaica discovered by Columbus; he names it "St. Iago" May 4 Christopher Columbus lands in Jamaica May 5 On 2nd voyage to New World, Christopher Columbus sights Jamaica June 7 Treaty of Tordesillas, Spain and Portugal divide America November 8 Uprising against Piero de' Medici in Florence Italy November 9 Family de' Medici become rulers of Florence November 18 French king Charles VIII occupies Florence
