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First meting of the league of nations in London.

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Assassination in Sarajevo.
EXPLAIN:
the assassination of archduke  Franz Ferdinand of Australia.
SIGNIFICANCE:
Archduke Franz Ferdinand was killed.

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US Declares war

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Armistice signed. Fighting ends at 11am

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World War one begins

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Treaty of Versailles conference opens.
EXPLAIN:
Wilson leads the conference.
SIGNIFICANCE:
us congress does not ratify.

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Wilson outlines the 14 points.
EXPLAIN:
An attempt to prevent another great world war.
SIGNIFICANCE:
League of nations was created.

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Russia withdraws from the war.

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October revolution occurs in Russia.
Bolsheviks under Lenin (communists) gain control of Russia.

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First Russian Revolution .
Tsar Nicholas 2 abdicates.

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US troops land in France

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germany resumes unrestricted submarine warfare
EXPLAIN:
is for stopping US trade.
SIGNIFICANCE:
US enters the war.

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Zimmerman note
EXPLAIN:
was a secret diplomatic communication issued from German Foregin office in January 1917 that proposed a military alliance between Germany and Mexico.
SIGNIFICANCE:
US calls out military.

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Germany calls of unrestricted submarine warfare

EXPLAIN:
Germany stops.
SIGNIFICANCE:
Germany starts back.

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The lusitania is sunk.
EXPLAIN:
An American passenger ship that Germany sunk.
SIGNIFICANCE:
The Americans on the us passenger ship died.