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Period: to
World War One
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Assassination of Archduke Franz Ferdinand
Ferdinand was assassinated by Gaurillo Princip, a Bosnian member of the Black Hand. -
Austria-Hungary declares war on Serbia
War was declared because it was discovered Serbia supplied the Bland Hand group with the weapons used to kill Archduke Franz Ferdinand. -
Germany Declares War on Russia and Russia declares war back.
Because Russia allied with Serbia in the war that Austria-Hungary started, Germany wanted to protect its alliance with Austria-Hungary and fight against Russia. -
Britain declares War on Germany
Britain declares war due to Germany invading France through Belguim, which was a country that Britain had port relations with. -
British fleets blockade German Ports
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Germany declares unrestricted submarine warfare
President Wilson believed it violated the law of neutrality. -
SInking of the passenger ship the Lusitania
The German U-baots fired a torpedo with no worning into the ship. THis resulted with around 1000 British deaths and around 250 American deaths. -
The Zimmermann Note is intercepted
The Zimmermann not is intercepted by the British who share it with the US. The note is from Germany to Mexico that states if Mexico fights with America, then the US won't enter the European War. -
German sink 3 merchant ships
German sinks 3 American merchant ships with U-boats. Brings America into war. -
President Wilson asks congress to declare war on Germany
