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 June 6, king John III of Portugal June 7, Pope Gregory XIII, who implements the Gregorian Calendar in 1582 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