Years: 423 424 425 426 - 427 - 428 429 430 431

Decades: 390s 400s 410s - 420s - 430s 440s 450s

Centuries: 4th century - 5th century - 6th century

Events

• Pyongyang is declared the capital of Goguryeo by king Jangsu

Births

Deaths

• December 24 - Sisinius I, Patriarch of Constantinople