Yong
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Was one of many small polities that emerged during the Chinese Spring and Autumn Period.
Establishment
January 770 BC: The polity is assumed to existed since the start of the Spring and Autumn period in 770 BC.
Chronology
Interactive Chronologies with maps are available in the section Changes Navigation
Was an insurrection in the Qin Empire that lead to its demise.
January 205 BC: After the fall of the Qin Dynasty, military leader Xiang Yu divided China into Eighteen Kingdoms. Among these, Yong was established in central Shaanxi and eastern Gansu.
Was a war between the two most powerful successors of the Qin Dynasty, Western Chu and Han, won by the latter which was able to reunite China.
January 204 BC: Liu Bang was the founder and first emperor of the Han Dynasty in China. The Chu-Han Contention was a power struggle between Liu Bang and Xiang Yu of the Chu state following the collapse of the Qin Dynasty. Liu Bang emerged victorious and established the Han Dynasty in -205 in Yong.
January 610 BC: Chu, one of many small polities that existed during the Chinese Spring and Autumn Period, conquered Yong in 609 BC.
Disestablishment
January 204 BC: Liu Bang was the founder and first emperor of the Han Dynasty in China. The Chu-Han Contention was a power struggle between Liu Bang and Xiang Yu of the Chu state following the collapse of the Qin Dynasty. Liu Bang emerged victorious and established the Han Dynasty in -205 in Yong.
Selected Sources
Cho-yun, H. (1999): The Spring and Autumn period In Cambridge History of Ancient China, Cambridge University Press, pp. 545-586
States of Zhou Dynasty, Wikipedia, 10 july 2017, https://de.m.wikipedia.org/wiki/Datei:States_of_Zhou_Dynasty.png