Only Five? There have been so many. Just off the top of my head:
1. The British, French, Spanish, European slave trade and slaughter of the Indigenous peoples of the Americas
2. The KKK - still existing today.
3. The Catholic Church
4. The Sharia Laws of Islam, the Taliban, the far right wing Christians, or any religious suppression of individual human rights.
5. The Trump Campaign/Presidency and collusion with foreign powers to destroy our Democratic process and American Republic.