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The Assassination of Archduke Franz Ferdinand
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 World War 1 and it's many events along the way. -
Austria-Hungary Declares War on Serbia
Austria-Hungary declares war on Serbia a week after Archduke Franz Ferdinand's assassination. This event is significant to World War 1 because this is wehen World War 1 started. -
Belgium is Involved
Germany invades Belgium, a neutral country in World War 1. This event is significant because it pushes Britain to ally with France, Russia, and Serbia. -
Battle of Tannenberg
Happening on the Eastern Front, Russia invaded east Prussia and German-Poland, but were halted by the German and Austrian forces. This event was significant because it ended with a German victory against the Russians. -
The Ottoman Empire Joins WW1
Due to the statement 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. -
First German Chemical Warfare Usage
Germany’s earliest use of chemical weapons, fired shells with a dangerous gas called asphyxiant gas smothered the Allied line on the northern end of the Ypres salient, causing panic and a struggle to survive a new form of weapon. -
The Lusitania Sinks
The Lusitania was a British ship that was travelling from New York to Liverpool, England when it was torpedoed by a German U-Boat and sank. This event is significant because it helped turn Americans against Germany. -
The First Battle of Isonzo
This battle took place soon after Italy joined the Allied forces. This event is significant because Italy joined the war and the Allies have another army fighting with them. -
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Battle of Verdun
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. -
Battle of Jutland
This battle is the biggest naval encounter in 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. -
U.S. Alerted About Zimmermann Telegram
US informed about Zimmermann Telegram from Germany to Mexico. The Zimmermann telegram clearly had helped draw the United States into the war. This event is significant because it changed the course of the war, which ended with an armistice, an agreement in which both sides agree to stop fighting. -
The United States Joins World War 1
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. -
Battle of Caporetto
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. -
The Russian Revolution
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. -
World War 1 Ends
Due to the decreasing 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.