The Crusades -- Human sacrifice -- Islamic jihads -- Blood libel -- Host-nailing -- Killing heretics -- The Inquisition -- Black death -- Witch-hunts -- The Reformation -- Anabaptists -- Puritans -- Orthodox war -- Enlightenment -- Sepoy mutiny -- Baha'i -- Russian pogroms -- Armenia -- The holocaust -- India -- Sudan -- Ulster -- Jonestown -- Lebanon -- Iran -- Muslim gore -- A force for good?