The Three Rings of China

From two 80 to five 81, a good three centuries that china is broken up into all kinds of pieces. This was also the time of the classical mayan period and early middle ages in europe. But if you had to pick a time to live in china, you'd want to avoid these three centuries. So swe wen d ushers in the swe in five 81. And at last, in China there's one ring to rule them all.