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World War I
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U.S. declares war
After the sinking of the lusitania, US declares war -
Assassination of Arckduke Franz Ferdinand
On June 28, Serbian, Gavrilo Princip, assassinates Archduke Franz Ferdinand. This assassination sets off a series that eventually lead to World War I. -
WWI begins
The assassination of archduke Franz Ferdinand leads up to ultimatiums that lead to WWI. The Austria-Hungarians declare war on Serbia on July 28. -
Ottoman Empire joins war
On August 2, the Ottoman Empire joins the Central Powers by signing an alliance with Germany against Russia -
The Panama Canal
The celebration of the Panama Canal opening called for a fleet of international warships to pass throgh the canal. The celebration did not happen due to World War I. -
First battle of the Marne
French and British troops met the attacking German troops on the frontier in August. The German troops forced both armies to retreat south. By the beginning of September a part of the German army was approaching Paris. Before the Germans were able to move past the city, however, the French attacked. -
The Gallipoli campaign begins
Sir Ian Hamilton landed a force on the narrow Gallipoli pennisula. The GAllipoli expedition was a costly failure. Troops were withdrawn in December and January. Many were sent to Egypt t opretect the Suez Canal, which threatened the Ottoman Empire. -
Armenian Massacre
Leaders of the Ottoman Empire arrest and murder Armenian social and political leaders. The massacre of Armenians from the Ottoman Empire, known as the Armenian Genocide, began in May -
Sinking of The Lusitania
The British ocean liner was sunk by German U-boat in 1915, killing over 1,000 people including 128 Americans. This incident indirectly pushes America into World War I. -
Battle of Verdun
To defend Verdun, the well-organized French artillery sends reinforcements along the vital supply route later dubbed the "Sacred Way." -
Battle of the somme
The Battle of the Somme is the name given to the large Allied offensive in 1916 against the Germans on the Western Front. A costly failure for the Allies, the Battle of the Somme came to symbolize the massive casualties and futile slaughter of World War I. -
Germany returns to unrestriced submarine warfare
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Zimmermann Telegram is Intercepted
The Zimmermann note was a proposal to join the Central Powers. The proposal was intercepted and decoded by British intelligence. Zimmermann note became a coded telegram dispatched by the Foreign Secretary on January 16, 1917. -
Treaty of Brest-Litovsk
Signed by representatives from Germany and Russia, this treaty ended Russia's involvment in World War I. -
Armistice Signed
The armistice that ended the war was signed on the 11th hour (11:00am) on the 11th day, of the 11th month. War is ended,
