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On this day, Archduke Franz Ferdinand of Austria and his wife were killed by a Serbian nationalist in Sarajevo.
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Hungary declares war on Serbia, effectively beginning the First World War.
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Germany declares war on Russia. France and Belgium begin full mobilization
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Germany declares war on France, and invades neutral Belgium. Britain then sends an ultimatum, rejected by the Germans, to withdraw from Belgium.
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The first British troops land 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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Battle of Heligoland Bight – The first naval battle between Great Britain and Germany took place in the North Sea
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Austria invades Serbia and the British Navy suffers defeat during a sea battle in the Pacific. Two British ships, the Monmouth and Good Hope, are sunk with no survivors by a German squadron commanded by Admiral Graf von Spee.
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Germany declared the waters about the British Isles a "war zone"
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Italy signs the Treaty of London, committing itself to enter World War I.
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The British ocean liner Lusitania is torpedoed without warning by a German submarine off the south coast of Ireland.
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On this day, The Battle of the Somme, also known as the Somme Offensive took place This was a battle of the First World War fought by the armies of the British Empire and France against the German Empire
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HMHS sinks after hitting a German mine
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Tthe Battle of Rafa occurs near the Egyptian border with Palestine.
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First major strike of the Russian "February Revolution" starts at the giant Putilov factory in Petrograd. German Foreign Secretary Arthur Zimmermann publicly admits the "Zimmermann Telegram" is genuine. Generates support for the US declaration of war on Germany in April.
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U.S. Enters World War I.the United States formally declared war against Germany and entered the conflict in Europe
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The first American troops land in France
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China declares war on Germany & Austria
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Gen Pershing & US troops see action on Western Front for 1st time
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The Fourteen Points was a speech of President Woodrow Wilson and addressed/delivered before a joint meeting of Congress on January 8, 1918, during which Wilson outlined his vision for a stable, long-lasting peace in Europe, the Americas and the rest of the world following World War I.
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An outbreak of deadly influenza appeared at Fort Riley, with as many as 500 soldiers hospitalized within a week
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Was the armistice that ended fighting on land, sea and air in World War I between the Allies and their opponent, Germany.
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Leaders from the Allied nations began a series of discussions that became known as the Paris Peace Conference to settle issues raised by the war and its aftermath
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The Treaty ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919 in Versailles, exactly five years after the assassination of Archduke Franz Ferdinand which directly led to World War I.
