May 12 in History 254 – Pope Stephen I succeeds Pope Lucius I, becoming the 23rd pope of the Catholic Church. 907 – Zhu Wen forces Emperor Ai into abdicating, ending the Tang dynasty after nearly three hundred years of rule. 1191 – Richard I of England marries Berengaria of Navarre in Cyprus; she is crowned Queen consort of England the same day. 1328 – Antipope…
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 12 in History 240 – Shapur I becomes co-emperor of the Sasanian Empire with his father Ardashir I. 467 – Anthemius is elevated to Emperor of the Western Roman Empire. 627 – King Edwin of Northumbria is converted to Christianity by Paulinus, bishop of York. 1012 – Duke Oldřich of Bohemia deposes and blinds his brother Jaromír who flees…