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A Serbian nationalist student, Gavrilo Princip, assassinated the Austrian Archduke Ferdinand and his wife, when their open car stopped at a corner on its way out of the town.
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The Austrian government blamed the Serbian government for the assassination of Franz Ferdinand and his wife and declared war on Serbia.
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Germany declared war on Russia.
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Germany declared war on France.
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Japan declared war on Germany through her alliance with Great Britain, signed in 1902
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The Battle of Mons was the first major action of the British Expeditionary Force.
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The third attempt to conquer the Serbians in retaliation for the assassination of Archduke Franz Ferdinand. This attempt fails like the two before it, at the hands of highly motivated Serbs fighting on their home ground.
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Germany declares the waters surrounding British Isles to be a war zone in which ships can be sunk without warning.
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The Ottoman government's systematic extermination of 1.5 million Armenians, mostly citizens within the Ottoman Empire.
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Italy signs the Treaty of London entering WW1 for the territory they were promised.
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A German submarine torpedoes the British passenger liner Lusitania. It sinks idrowning 1,201 persons, including 128 Americans. President Woodrow Wilson sends four diplomatic protests to Germany.
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The British Army suffers the worst single-day death toll in its history as 18,800 soldiers are killed on the first day of the Battle of the Somme.
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The Britannica sinks in the Aegean Sea killing 30 people. More than 1,000 others were rescued.
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the third and final battle to complete the recapture of the Sinai Peninsula by British forces during the Sinai and Palestine Campaign of the First World War
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The USA declares war on Germany
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The first US troops land on French soil
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CHina declares war on Germany and Austria
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President Woodrow Wilson speech in 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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Armistice concluded between the Allied and Associated Powers and Germany.
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Post-World War I peace conference begins in Paris. Some of the most powerful people in the world meet to begin the long, complicated negotiations that would officially mark the end of the First World War
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Germany and the Allied Nations (including Britain, France, Italy and Russia) signed the Treaty of Versailles, formally ending the war.
