📅 Today in HistoryApril 12

Shapur I becomes co-emperor of the Sasanian Empire with his father Ardashir I.

Anthemius is elevated to Emperor of the Western Roman Empire.

King Edwin of Northumbria is converted to Christianity by Paulinus, Bishop of York.

Nikephoros I of Constantinople is consecrated as patriarch of Constantinople.

Duke Oldřich of Bohemia deposes and blinds his brother Jaromír, who flees to Poland.[citation needed]

Having received the submission of the prince of Antioch, Raynald of Châtillon, Byzantine Emperor Manuel I Komnenos enters triumphantly the city of Antioch.

The Crusaders of the Fourth Crusade breach the walls of Constantinople and enter the city, which they completely occupy the following day.

The Union Flag is adopted as the flag of English and Scottish ships.

American Revolution: With the Halifax Resolves, the North Carolina Provincial Congress authorizes its Congressional delegation to vote for independence from Britain.

American Revolution: A Royal Navy fleet led by Admiral George Rodney defeats a French fleet led by the Comte de Grasse at the Battle of the Saintes off Dominica in the Caribbean Sea.