Original sentence: ) At this point in history, the Qing Dynasty, formed by invading Manchus in the 1640s, was consolidating its hold on western Taiwan, which it had wrested from the Cheng family in 1682.After being joined by other aboriginals, they drove as far south as the county seat of ZhangHua in May, 1732 before being chased into the mountains by Qing forces.Another rebellion, this one in 1786, against Qing authorities had its roots in the nearby town of Dali, just south of Taichung City.Taichung was founded in 1705 as a part of ZhangHua County with the name of Dadun (大墩.Unfortunately, as they moved northward, they turned to slaughter and looting
Edited sentence: )  At this point in history, the Qing Dynasty, formed by invading Manchus in the 1640s, was consolidating its hold on western Taiwan, which it had wrested from the Cheng family in 1682.After being joined by other aboriginals, they drove as far south as the county seat of ZhangHua in May, 1732 before being overwhelmed and fled into the mountains.Another 1786 rebellion against Qing authorities had its roots in the nearby town of Dali, just south of Taichung City.Taichung was first occupied  in 1705 by foreign Chinese armies as a part of ZhangHua County with the name of DaDun (大墩.Unfortunately, as they moved northward, the foreign Chinese army turned to genocidal slaughtering and looting