450

450 (CDL) was a common year beginning on a Sunday of the Julian calendar, in force on that date.

In the Roman Empire, the year was named the year of the consulate of Valentinian and Avienus, or less commonly, as 1203 Ab urbe condita, acquiring its name as 450 at the beginning of the Middle Ages, when the anno Domini was established.

It is the year 450 of the first millennium, the year 50 of the fifth century, and the first year of the 450s.

Events

• Council of Chalcedon in which the heresy of Eutiquio is fought.
• Martian is appointed Roman Emperor of the East; he will reign until 457.
• Beginning of the Xolalpan phase of Teotihuacán in Mesoamerica, according to the chronology of René Millon.

Births

• Chilperico II, king of the bureaucrats.
• Guntamundo, king of vandals and alanos.
• Justin I, Byzantine emperor.
• Trasamundo, king of the Vandals and the Alanos.

Deaths

• Saint Vincent de Lerins, saint and father of the Church.
• Gala Placidia, daughter of the Roman Emperor Theodosius I.

Art and literature

• Construction of the Mausoleum of Gala Placidia in Rávena.