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The heir to the Austro-hungarias throne and his wife were killed while they were going to a hospital in Sarajevo by car.
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After the murder of Francis Ferdinand, Austria blamed Serbia of it, as Gavrilo Princep, the murderer, was a Bosnian student related to Serbian nationalist organizations.
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Russia tried to help Serbia against Austria, and Germany, who was an Austrian ally, declared war on Russia.
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Germany, who was planning to attack Russia, asked France to be neutral, but it answered with a general mobilization. Germany declared war on France and tried to invade it, and the invasion nearly arrived to Paris.
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It was a battle in the Eastern Front between Germany and Russia. Germany won.
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It was a battle between France and Germany in the North of Paris. France won and stopped the invasion of Germany.
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The poisoning gas was a really important innovation in World War I. Germany had 168 tons of gas, and it produced a huge claud.
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A German submarine attacked the RMS Lusitania, which was a British ocean liner. Of the 1,962 passengers and crew aboard Lusitania, only 764 could survive.
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German Zeppelins bombard suburbs of London.
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It was a very important battle in Worls War I, fought between Germany and France in the Western Front. France won, but there were more than 140000 kills in each side.
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It was a battle in the Western Front between UK with France against Germany. It was one of the bloodiest battles in history, and more than one million people were killed. Germany won.
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It was a peace treaty signed by Russia and the Central Powers, which ended Russia's participation in World War I.
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It was the last great battle of Germany in the Wastern Front. The Entente Powers won.
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The armistice was signed and the fight of World War I ended. It is also known as the Armistice of Compiègne becaus it was signed in a train inside the Compiègne forest.
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It was the most important of the peace treaties of Worls War I, beacause it ended the state of war between the Entente Powers and the Central Powers. It was signed exactly five years after the assassination of Francis Ferdinand.
