• Archduke Franz Ferdinand Assassinated

    The Archduke was shot by Gavrilo Princip in Sarajevo. This assassination sparked World War I.
  • Austria declares war on Serbia

    This event began the "Great War."
  • Ottoman-Germany alliance formed

    The alliance was created as part of a joint-cooperative effort that would strengthen and modernize the ailing Ottoman military, as well as provide Germany safe passage into neighboring British colonies.
  • Japan declares war on Germany

    An alliance with the Entente Powers and played an important role in securing the sea lanes in the South Pacific and Indian Oceans against the German Kaiserliche Marine.
  • US declares war on Germany

    President Woodrow Wilson cited Germany’s violation of its pledge to suspend unrestricted submarine warfare in the North Atlantic and the Mediterranean, and its attempts to entice Mexico into an alliance against the United States, as his reasons for declaring war.
  • Russian army out of ammunition

    This gave the Russian army a disadvantage and caused them to do worse in the war.
  • Battle of Verdun

    Fought on the Western Front between the German and French armies.
  • Battle of Jutland

    A naval battle fought by the Royal Navy's Grand Fleet against the Imperial German Navy's High Seas Fleet.
  • Zimmerman Telegram found

    The Zimmermann Telegram was a 1917 diplomatic proposal from the German Empire for Mexico to join the Central Powers, in the event of the United States entering World War I on the side of the Entente Powers.
  • Unrestricted submarine warfare commences

    Unrestricted submarine warfare is a type of naval warfare in which submarines sink vessels such as freighters and tankers without warning, as opposed to attacks per prize rules.
  • Tsar Nicholas II abdicates

    Tsar Nicholas II abdicates his thrown making him the last king of Russia.
  • Battle of Passchendaele

    Fought by the Bristish and their allies against the German Empire for control of the ridges south and east of the Belgian city of Ypres in West Flanders.
  • October Revolution

    This was a seizure of state power instrumental in the larger Russian Revolution of 1917.
  • Balfour Declaration

    The Balfour Declaration was a letter from the United Kingdom's Foreign Secretary Arthur James Balfour to Baron Rothschild, a leader of the British Jewish community, for transmission to the Zionist Federation of Great Britain and Ireland.
  • Vladimir Lenin siezes power in Russia

    He took over during the revolt and was the leader until Stalin came to power.
  • Influenze epidemic

    An estimated 50 million people, one fifth of the world's population, was attacked by this deadly virus. Within months, it had killed more people than any other illness in recorded history.
  • Fourteen Points proposed

    A statement by the US President Woodrow Wilson declaring that World War I was being fought for a moral cause and calling for postwar peace in Europe.
  • Russia signed treaty of Breatlitovask

    The Treaty of Brest-Litovsk was a peace treaty on March 3, 1918, between the new Bolshevik government of Russia and the Central Powers, which ended Russia's participation in World War I
  • Armstice Signed

    The armistice between the Allies and Germany – also known as the "Armistice of Compiègne" after the location it was signed – was the agreement that ended the fighting in western Europe that comprised the First World War.
  • Kaiser Wilhelm II abdicates

    Was the last German Emperor and King of Prussia.