April 21
Events Pre-1600 753 BC – Romulus founds Rome (traditional date). 43 BC – Battle of Mutina: Mark Antony is again defeated in battle by Aulus Hirtius, who is killed. Antony fails to capture Mutina and Decimus Brutus is murdered shortly after. 900 – The Laguna Copperplate Inscription (the earliest known written document found in what is now the Philippines): the Commander-in-Chief of the Kingdom of Tondo, as represented by the Honourable Jayadewa, Lord Minister of Pailah, pardons from all debt the Honourable Namwaran and his relations. 1092 – The Diocese of Pisa is elevated to the rank of metropolitan archdiocese by Pope Urban II 1506 – The three-day Lisbon Massacre comes to an end with the slaughter of over 1,900 suspected Jews by Portuguese Catholics. 1509 – Henry VIII ascends the throne of England on the death of his father, Henry VII. 1526 – The last ruler of the Lodi dynasty, Ibrahim Lodi is defeated and killed by Babur in the First Battle of Panipat. 1601–1900 1615 – The Wignacourt Aqueduct is inaugurated in Malta. 1782 – The city of Rattanakosin, now known internationally as Bangkok, is founded on the eastern bank of the Chao Phraya River by King Buddha