Centuries: 4th century - 5th century - 6th century
Decades: 370s 380s 390s 400s 410s - 420s - 430s 440s 450s 460s 470s
Years: 417 418 419 420 421 - 422 - 423 424 425 426 427
Events
- September 10 - Celestine succeeds Boniface as Pope
Deaths
- September 4 - Pope Boniface I
- Liu Yu (Song Wu Di), ruler of the Chinese Song Dynasty\n