451

Western Roman Empire

 * — The sack.
 * — : The and the, facing the  and the , achieve at best a draw. After the battle, between 10,000 and 20,000 men lie dead on the.

Europe

 * : The n army is defeated by the, and their rebel leader, , dies. Despite the loss, consider this battle to have been a moral and religious victory, since the Persian king, out of respect for their efforts, allows them to remain Christian. The anniversary is a national and religious holiday.

Asia

 * ruler 's decree abolishes the, and orders executions of ish leaders, including the.

Religion

 * —, of the Christian church.  As a result of this council the  churches became a separate communion.
 * becomes a.
 * is deposed as.

Births

 * , Syriac author
 * , Irish saint

Deaths

 * , king of the Visigoths (killed in battle)