Uprising of Mangi and Mangsoi

Mangi and Mangsoi of Myeonghak-so in Gongju rose up against the discrimination and exactions suffered by "so" districts; the government tried to placate them by upgrading the district to a county.

Hyang, bugok and so were special districts treated worse than ordinary counties. People of a "so" had to produce goods such as gold, silver, iron, paper and ink for the state, paid heavier taxes and could not move away.

In the first month of 1176 Mangi and Mangsoi gathered followers and took Gongju. The government raised Myeonghak-so to the county of Chungsun to appease them, but when it broke its word and jailed their families they rose again and swept through Chungcheong. They were put down in 1177 and the county reduced again to a "so". It is the classic example of a low-born uprising under military rule.