If I remember correctly it was #2. The radical republicans wanted to punish confederate leaders so #3 is wrong. They did not want white southern representation in congress so #4 is wrong. And the democrats wanted to prevent freed slaves from owning land. Hope this helps!
(1) It brought about war and problems.
(2) It was a time of slavery
(3) It lead to the death of many people
(4) It is unconstitutional.
(5) Used the name of God to manipulate other people.
The Crusades & the Inventing of the printing press. Additionally, the population losses sustained in Europe.