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The Archduke and his wife were visiting Bosnia when they were shot inside their car by a Serbian nationalist,Gavrilo Princip. This event is significant because this is the start of WWI when Austria-Hungary declared war on Serbia, which set in motion several events.
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Austria-Hungary declares war on Serbia a week after Archduke Ferdinand's assassination. This event is significant to WWI because this is when WWI started.
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Germany invades Belgium, a neutral country in WWI. This event is significant because it pushes Britain to ally with France, Russia, and Serbia.
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Happening on the Eastern Front, Russia invaded east Prussia and German Poland, but were halted by the German and Austrian forces. This even was significant because it ended with a German victory against the Russians.
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The first Battle of Marne, 30 miles from Paris, fought when the French and British forces met the invading German troops and lasted until the ninth of September This event is significant because it is the first battle of WWI.
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Due to the stalemate in Europe, the Allies tried to score a victory against the Ottoman Empire, which resulted in them joining the Central Powers. This event is significant because now Germany and Austria have another ally and more soldiers fighting against the Allied forces.
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The Lusitania was a Britain ship that was travelling from New York to Liverpool, England when it was torpedoed by a German U-Boat and sank. This even is significant because it helped turn Americans against Germany.
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This battle took place soon after Italy joined the Allied forces. This battle is significant because Italy joined the war and the Allies have another army fighting with them,
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Battle of Verdun was one of the longest battles during WWI. This battle was fought along the Western Front between the French and the Germans. This event is significant because it is one of the longest battles in WWI, lasting from February to December in 1916. Both sides suffered almost a million casualties after this battle.
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This battle is the biggest naval engagement on World War I. It was fought between Britain and Germany when Germany attempted to break the blocked. After this battle, Germany would make no attempt to break this blockade again. This event is important because it shows how strong the Allied naval forces were.
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The Battle of Somme was another long battle between the French and Germans on the Western Front. This battle is significant to WWI because it is the second longest battle during this war.
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President Woodrow Wilson asked congress to declare war on Germany after four American ships were sunk by Germany in the month of March. This event is significant because the United States joins the war and fights against Germany and Austria-Hungary.
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Also known as the Twelfth Battle of the Isonzo. This battle was a victory for Austria-Hungary due to German aid. This battle took place on the Italian front. This event is significant to WWI because it increased Italian aid towards the Allies.
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After two years of defeat, the Russian population grew discontent with the war and were unhappy with Russia's leaders. They then revolted, led by Vladimir Lenin, which forced Russia to form an armistice with the Central Powers, therefore, allowing them to move their forces towards Russia's allies on the Western Front. This event is significant because it shows the views of the public during WWI.
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Due to dwindling resources, discontent among its citizens, and their allies surrendering, Germany was forced to seek an armistice with the Allied forces, ending WWI. This event is significant because it is the end of the first World War.
