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Archduke Francis Ferdinand Assassinated
Franz Ferdinand and his wife, Sophie the Duchess of Hohenburg, are killed by Bosnian Serb nationalist Gavrilo Princip. The Austrian government suspects that Serbia is responsible. -
Austria Declares War on Serbia
After the Austrian government accused Serbia of assisting in the Archduke's death, they officially declared war. -
Germany Invades Belguim
Germany sees a military advantage on the western front and decides to take over neutral Belguim on their way to France. -
Britain Declares War on Germany
Outraged by the invasion of Belguim, Britain joines the war on the side of the Allies. -
Russians Defeated at Tannenburg
The Russians had a major loss at Tannenburg which drove the Eastern Front back into Russian Territory. -
The Ottoman Empire Joins the Central Powers
Had the Ottomans joined the Allies then the Central Powers would have had to fight a three front war. -
Poison Gas used in War
Both sides of the war used poison gass to choke the enemies in the trenches on the western front. -
Germany uses Zeppelin Bombers
Germany used baloon zeppelins in order to fly above and drop bombs on Britains coast. -
German U-Boat Blockade
German U-Boats blockade supplies from britain and the other allies. -
German U-Boats sink the Lusitania
German U-Boats sink a passenger ship with a bunch of Americans on it. -
Italy declares war on Austria-Hungary
Italy decided to join in the war efforts on the side of the Allies extending the Western Front much further south. -
Britain Introduces Armoured Tanks
Britain was the first country in the war to use armoured tanks to engage in combat on either front. -
Arabs Revolt against the Ottoman Empire
A revolt from the south greatly weakens the Ottoman Empire -
Battle of Gallipoli Ends
The 8 month battle over the Dardenelles is finished leaving the Central Powers Victorious. -
Bread Riots in St Petersburg
People revolt in Russia causing the tsar to step down -
America joins the Allies
America joins the war on the side of the Allies -
Italy loses at Caporetto
Italy suffers a big loss at Caporetto effectively taking them out of the war. -
American troops arrive on the Western Front
American troops provide a large push against German forces. -
Treaty of Brest-Litowsk
Russia officially drops out of the war. -
WW1 Ends
The treaty of versailles is signed and the war is officially over.
