The three important reasons for studying history are 1) to connect the dots to form a picture 2) to reveal past contributions of civilizations 3) to connect the past to the present 4) to memorize important dates, events, and people 5) to recognize patterns

congress failed to remove johnson. but it did succeed in getting control of efforts to re-build the south following america's civil war. radical republicans wanted to punish the south for starting the war. they also wanted to be sure new governments in the southern states would support the republican party.