Answer:
all the answers for each question
The Han Empire quickly broke down as a series of warlords fought each other for control. One, Cao Cao, who had possession of the young emperor Xian, tried to unify China, but ultimately failed. After Cao Cao died in 220 CE, the emperor Xian was forced to give up his position, officially ending the Han Dynasty.
Answer:
popular sovereignty
Explanation:
let states decide wether or not to allow slavery. hope this helps ! :)