Decades: 1450s 1460s 1470s 1480s 1490s - 1500s - 1510s 1520s 1530s 1540s 1550s
Years: 1497 1498 1499 1500 1501 - 1502 - 1503 1504 1505 1506 1507
Events January 1 - Rio de Janeiro discovered in Russia, Ivan II the Great attacks Livonia without success May 9 - Christopher Columbus leaves Spain for his fourth and final trip to the "New World". Aztec ruler Auitzotl dies; Moctezuma II elected emperor Peter Henlein builds the first pocketwatch "Newfoundland" gets its name from a letter. Christopher Columbus lands at Trujillo and named the mainland "Honduras". Portuguese explorers sailed into Guanabra Bay, Brazil and mistook it for the mouth of a river which they named Rio de Janeiro. Wittenberg University founded. Births January 7 - Pope Gregory XIII, who implements the Gregorian Calendar in 1582 June 6 - King John III of Portugal John Leland - English antiquarian Anne Boleyn - Later second Queen consort of Henry VIII of England. Another possible year of birth is 1507. Deaths 2 April - Arthur Tudor (son of Henry VII of England). 6 May - James Tyrrell, executed; alleged murderer of the Princes in the Tower\n