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Archduke Ferdinand is assassinated by a Serbian nationalist
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On the 1 month anniversary of the assassination of Archduke Franz Ferdinand, Austria-Hungary declares war on Serbia.
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Germany declares war on Russia and France and Belgium started to get the troops ready for war.
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Germany declares war on France and invades Belgium who is neutral. The Germans reject an ultimatum from Britain who asked to withdraw from Belgium.
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The first British troops landed in France.
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Great Britain and France declare war on Austria-Hungary. Serbia is invaded by Austria-Hungary.
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Japan declares war on Germany and prepare to help the British in expelling the Germans from the Far East.
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British Navy suffers a big defeat during a sea battle in the Pacific. Two ships are sunk with no survivors.
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Germany declares the waters surrounding British British Isle so it could be a war zone where ships could be sunk without warning.
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The Armenian Holocaust was the Ottoman government's systematic extermination of 1.5 million Armenians.
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Italy signs the Treaty of London after receiving the promise of some territory, committing to side with the Allies.
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A German boat attacks a British boat, causing it to sink and Woodrow Wilson (president) to send 4 diplomatic protest the Germany.
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A battle between the British and French against the Germans.
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Sister ship of the Titanic, Britannic, sinks in the Aegean Sea, killing 30 people.
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The Battle of Rafa occurred near the Egyptian border with Palestine, causing a British win.
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German Foreign Secretary, Arthur Zimmermann publicly admits that the Zimmermann Telegram is real.
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The U.S. gets involved in the war, allying with the Allies to fight against Germany.
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The American troops land in France.
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WW1 begins its 4th year. China abandons its neutrality and declares war on Germany.
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The Rapallo Conference in Italy was convened by the allied powers in the wake of the severe Italian setback.
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The armistice that ended fighting on land, sea, and air between the allies and Germany.
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President Woodrow Wilson made a speech about the principles of peace, hoping to get peace negotiations to end the war.
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An outbreak of the Spanish flu (Spanish influenza) is reported at Fort Riley and Haskell County, Kansas, killing 50 million+ people.
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Leaders from the allied nations began to meet to settle issues brought up by the war and its effects.
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The Treaty of Versailles was signed by Germany, in France, ending the war.
