my boyfriend is a nerd

In the ancient times about 5000 years ago, there were many clans and tribes in the Yellow River and Yangtze River valleys of our country.In order to survive, reproduce, or migrate, or alliance, or struggle, disputes or fights between tribes and clans often occur.Among them, there are two relatively powerful tribes, one is the tribe headed by Emperor Yan of the Shennong clan, and the other is the tribe headed by the Emperor Xuanyuan clan.

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