: 5th century
- 6th century
- 7th century
Decades: 490s - 500s - 510s - 520s - 530s - 540s - 550s - 560s - 570s - 580s - 590s
Years: 545 546 547 548 549 550 551 552 553 554 555
- End of the Eastern Wei Dynasty and beginning of the Northern Qi Dynasty in northern China. Northern Qi Wen Xuan Di is the first ruler of the Northern Qi Dynasty.