How long did the manchus rule china, and what changes did they make to chinese territory?

So the manchus formed the Qing Dynasty of China from 1644-1912.

That's a long time XD

the Manchus took advantage of the rebellion and chaos in the Chinese empire and moved south. Forming an alliance with a Ming loyalist general, they entered Beijing in June and almost immediately took power for themselves.

“i think it is very plausible that if there are five votes to end the death penalty, it could be with the people who are on the court right now,” - smith

so basically it is not clearly and consistently imposed