421

Years: 417 418 419 420 - 421 - 422 423 424 425
Decades: 390s 400s 410s - 420s - 430s 440s 450s
Centuries: 4th century - 5th century - 6th century

Events

February 8 - Constantius III becomes Co-Emperor of the Western Roman Empire
June 7 - Roman Emperor Theodosius II marries Aelia Eudocia, formerly known as Athenais.
Theodosius declares war on Persia.

Births

Deaths