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The austro Hungarian empire declares war on Serbia. -
Archduke Franz Ferdinand, heir to the Austrian throne and his wife, visit Sarajevo in Bosnia. A bomb is thrown at their auto but misses. -
A German U-Boat torpedoes the British passenger liner Lusitania off the Irish coast. It sinks in 18 minutes, drowning 1,201 people. -
The Royal Naval Air Service adopted the same roundel as used by the Royal Flying Corps and discontinued the use of the Union Jack on Fuse -
The British intercept a telegram sent by Alfred Zimmermann in the German Foreign Office to the German embassies in Washington D.C -
The United States of America declares war on Germany. -
The first American troops land in France -
Great Britain declares war on Germany. The declaration is binding on all Dominions within the British Empire including Canada, Australia.. -
At 5:10 am in a railway car at Compiegne France, the Germans sign the Armistice which is effective at 11 am- the eleventh hour of the evening -
The Versailles Peace Treaty, signed on June 28th 1919, officially ended World War I. Of note, on the same day, five years wearlier the Arhciture