April 19 in History AD 65 – The freedman Milichus betrays Piso’s plot to kill Emperor Nero and all the conspirators are arrested. 531 – Battle of Callinicum: A Byzantine army under Belisarius is defeated by the Persians at Raqqa (northern Syria). 797 – Empress Irene organizes a conspiracy against her son, the Byzantine emperor Constantine VI.…
April 18 in History 796 – King Æthelred I of Northumbria is murdered in Corbridge by a group led by his ealdormen, Ealdred and Wada. The patrician Osbald is crowned, but abdicates within 27 days. 1506 – The cornerstone of the current St. Peter’s Basilica is laid. 1518 – Bona Sforza is crowned as queen consort of Poland.…
In the Roman calendar, March 15 was known as the Ides of March. March 15 in History 474 BC – Roman consul Gnaeus Manlius Vulso celebrates an ovation for concluding the war against Veii and securing a forty years’ truce. 44 BC – Marcus Junius Brutus the Younger and his fellow conspirators, Gaius Cassius Longinus, Decimus…