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Assassination of Archduke Franz Ferdinand and his wife
The assassination was the boiling point for the war. Franz Ferdinand and his wife were rolling long in their open car, then they were shot and attacked by Garvilo Princip. This upset the delicate balance among the powers of Europe and then the war started. -
Austria-Hungary Declares War on Serbia
Austria-Hungary blamed Serbia for the asssassination so they declared war on them. -
Germany Delcares War on Russia
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Germany Delcares war on France
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Germany invades Belguim
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Great Britain Declares war on Germany
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Battle of Marne
The British and French met the Germans at the Marne River. The battle made it clear that neither side could win the war quickly or easily. -
Sinking of Lusitania
A German U-boat torpedoed the British passenger liner called the Lusitania near the coast of Ireland. More than 1,000 people died. 128 of those people were Amercians. -
Battle of Verdun
To break the standstill the Germans launched the Battle of Verdun in northeasteren France. This battle was one of the longest and bloodiest battles of war. More than 750,000 French and German soldiers were dead. Many were also injured. -
Sussex's Pledge
German U-boat attacked the unarmed French passenger ship Sussex. Several Americans were injured. Germany began to fear the U.S. might join the war, so they offered money to those injured on the Sussex. They also promised to warn neutral ships and passenger vessels before attacking. -
Battle of Somme
While the Battle of Verdun was going on, the Allies launched their own battle- the Battle of Somme. Tis battle also made horrifying causualities and the Allies only gained 7 miles. -
the Zimmerman note is intercepted
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Russian Revolution breaks out
The revolution was an effort to overthrow the government. The Russians defeated their ruler, so now their government would be more democratic. The new rulers said that they would have free elections and promised to keep fighting Germany. -
US declares war against Germany
President Wilson asked Congress for a declaration of war against Germany. After some debate, Congress decided that the nation had to defend its rights if it wished to remian a world power. -
Battle of Argonne Forest
The battle lasted about 7 weeks. It was hard for soldiers because they struggled over the rugged, heavily-forested ground. Many soldiers died. The Allies won in early November.
