A foreign country. Human prehistory ; Homeric Greece ; The Hebrew bible ; The Roman Empire and early Christendom ; Medieval knights ; Early modern Europe ; Honor in Europe and the early United States ; The 20th century -- The pacification process. The logic of violence ; Violence in human ancestors ; Kinds of human societies ; Rates of violence in state and nonstate societies ; Civilization and its discontents -- The civilizing process. The European homicide decline ; Explaining the European homicide decline ; Violence and class ; Violence around the world ; Violence in these United States ; Decivilization in the 1960s ; Recivilization in the 1990s -- The humanitarian revolution. Superstitious killing : human sacrifice, witchcraft, and blood libel ; Superstitious killing : violence against blasphemers, heretics, and apostates ; Cruel and unusual punishments ; Capital punishment ; Slavery ; Despotism and political violence ; Major war ; Whence the humanitarian revolution? ; The rise of empathy and the regard for human life ; The republic of letters and enlightenment humanism ; Civilization and enlightenment ; Blood and soil -- The long peace. Statistics and narratives ; Was the 20th century really the worst? ; The statistics of deadly quarrels, Part 1 : the timing of wars ; The statistics of deadly quarrels, Part 2 : the magnitude of wars ; The trajectory of great power war ; The trajectory of European war ; The Hobbesian background and the ages of dynasties and religions ; Three currents in the age of sovereignty ; Counter-enlightenment ideologies and the age of nationalism ; Humanism and totalitarianism in the age of ideology ; The Long Peace : some numbers ; The Long Peace : attitudes and events ; Is the Long Peace a nuclear peace? ; Is the Long Peace a democratic peace? ; Is the Long Peace a liberal peace? ; Is the Long Peace a Kantian peace? -- The new peace. The trajectory of war in the rest of the world ; The trajectory of genocide ; The trajectory of terrorism ; Where angels fear to tread -- The rights revolutions. Civil rights and the decline of lynching and racial pogroms ; Women’s rights and the decline of rape and battering ; Children’s rights and the decline of infanticide, spanking, child abuse, and bullying ; Gay rights, the decline of gay-bashing, and the decriminalization of homosexuality ; Animal rights and the decline of cruelty to animals ; Whence the rights revolutions? ; From history to psychology -- Inner demons. The dark side ; The moralization gap and the myth of pure evil ; Organs of violence ; Predation ; Dominance ; Revenge ; Sadism ; Ideology ; Pure evil, inner demons, and the decline of violence -- Better angels. Empathy ; Self-control ; Recent biological evolution? ; Morality and taboo ; Reason -- On angels' wings. Important but inconsistent ; The pacifist’s dilemma ; The Leviathan ; Gentle commerce ; Feminization ; The expanding circle ; The escalator of reason ; Reflections.