Russia went to war with Japan and lost.
War fought between the Allies, which are Britain, France, Russia, and Italy, versus the Central Powers, which are Germany, Austria-Hungary, Bulgaria, and the Ottoman Empire.
German U-Boats, using "unrestricted submarine warfare", sank a boat named the Lusitania.
Revolution in which the Tsarist Government in Russia is overthrown by the Bolshevik Party.
The Treaty of Brest-Litovsk was a treaty between Russia and Germany to end the war between them.
The Tsar and his family were assassinated to prevent the him from rising to power and overthrowing the new Communist government.
The victorious countries of World War I met to discuss post-war actions.
The League of Nations was an international organization that advocated peace after the conclusion of World War I.
The signing of the Treaty of Versailles officially ended World War I.
Lenin implemented a policy that allowed peasants and farmers to sell their produce and run small businesses.
The Great Depression was a global epidemic in which many economic systems began to fall apart or fail entirely. Many people were unemployed and inflation was a big issue during this time.
Hitler was appointed Chancellor of Germany by President Hindenburg.
The Rape of Nanking was a mass murder and rape by Japanese troops in the Chinese city of Nanking.
War fought between the Axis Powers, which are Germany, Italy, and Japan, versus the Allied Powers, which are France, Britain, the United States, and Russia.