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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.