Why was the social structure of europe challenged by the growing number of free townspeople and the changing economy

Which roman emperor was responsible for a major shift in the dominate religious attitude of the roman empire?

If the imperial dynasty had continued to rule china, it is most likely that a) the economy would have improved rather than weakened b) european nations would have gotten more of a foothold in china c) revolutionary groups would not have gained any power in the country d) communism would not have received support among the poor

What conclusion was reached by the warren commission