The Treaty of Versailles The Treaty of Utrecht The Treaty of Westphalia The Treaty of Paris Otto I Henry IV Frederick Barbarossa Charlemagne (Charles the Great) Naval dominance British trade of opium in China Disputes over territorial expansion Religious conflicts The Maya Civilization The Olmec Civilization The Inca Empire The Aztec Empire The Battle of Trafalgar The Battle of Leipzig The Battle of Waterloo The Battle of Austerlitz Rebuild war-torn European economies Promote decolonization in Africa and Asia Establish the United Nations Create the North Atlantic Treaty Organization (NATO) Clement Attlee Neville Chamberlain Stanley Baldwin Winston Churchill The Ottoman Empire The Byzantine Empire The Persian Empire The Mughal Empire The signing of the Treaty of Versailles The sinking of the Lusitania The assassination of Archduke Franz Ferdinand The invasion of Poland Mikhail Gorbachev Vladimir Lenin Joseph Stalin Boris Yeltsin Check my Score