China: Northern and Southern Dynasty （南北朝） (jan 1, 420 – jan 1, 589)
Description:
Northern:1. Northen Wei （北魏）: 386-534
2. Eastern Wei （东魏）: 534-550
3. Western Wei （西魏）: 535-556
4. Northern Qi （北齐 ）: 550-577
5. Northern Zhou（北周）: 557-581
Southern:
1. Song（宋）: 420-479
2. Qi（齐）: 479-502
3. Liang（梁）: 502-557
4. Chen（陈）: 557- 589
Added to timeline:
Date:
jan 1, 420
jan 1, 589
~ 169 years