Qin dynasty (unified in 22 BC1year),

Western Han Dynasty (founded by Liu Bang in 202 BC),

Eastern Han Dynasty (divided into three kingdoms in the last years),

Western Jin Dynasty (unified in 280),

Sui, Tang, Yuan, Ming and Qing dynasties.

Second, several unified dynasties in the history of China are-

Qin Shihuang unified the six countries and ended the division of the Warring States.

In the second Western Jin Dynasty, Sima Yan destroyed Wu Dong and ended the division of the three countries (short-term).

In the third Sui Dynasty, Emperor Wendi destroyed Chen Nan, ending the division of the Three Kingdoms, the Jin Dynasty and the Southern and Northern Dynasties.

In the fourth year of the Yuan Dynasty, Kublai Khan of Yuan Shizu destroyed the Southern Song Dynasty, ending the division of the Five Dynasties and Ten Kingdoms, Song, Liao, Western Liao, Xixia, Jin and Dali.