(a) during the middle ages, the church was the supreme power in europe. but by 1500, some people challenged that authority with widespread consequences. discuss the time period of the reformation in a well-organized essay that addresses three of these topics: describe two church practices that reformers wanted to change and why they wanted to change them. explain how the split in christianity into roman catholicism and protestantism came about. describe three ways in which the roman catholic church attempted to reform itself and stop the spread of protestantism. explain how the reformation led to political conflict and warfare during the 1500s.