History - 20th Century - World War I - The Great War
Timeline of WWI's major events. 1914 June: Assassination of Archduke Franz Ferdinand (the spark). 1914 Aug: War begins - alliance system drags everyone in. 1914-1917: Trench warfare on Western Front (stalemate). 1915: Gallipoli campaign fails. 1917: USA enters the war; Russian Revolution takes Russi