Answered by Fenny
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Nov. 11, 2013 21:08
1. The abdication system was changed to hereditary system for emperors.
2. During that time, the whole China was fist divided to nine areas/states, such as Jingzhou, Youzhou, Qingzhou and Yanzhou.
3. The orginal land and tax systems as well as primitive characters were made then.
Just for your reference!