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Archduke Franz Ferdinand is assasinated
The Archduke's death started World War One. After his death Austria- Hungary blamed Serbia for the murder and declared war. -
Austria-Hungary Declares war on Serbia
Austria-Hungary blamed Serbia for their Archduke's assasination. Austria-Hungary's war declaration caused Russia to get involved which caused Germany to get involved. -
Germany Declares War on Russia
The Russian army began to prepare for war to protect Serbian Slavs from Austria-Hungary. Germany declared war on Russia to protect Austria-Hungary. -
Germany Declares War on France
Germany declared war on France because France was Russia's ally in the Triple Entente. Germany was also defensive against France because France had colonies and Germany wanted that too. -
Germany Invades Belgium
Germany was following their plan to catch Belgium and France by surprise. Great Britain declared war on Germany as a result because they had sw.orn to protect Belgium -
German U-boats Sink the Lusitania
The sinking of the Lusitania was a result of Unrestricted Submarine Warfare. The ship company told passengers that it was too fast for any German submarine however this proved to be untrue. -
The Zimmerman Note was Discovered
The Germans wanted Mexico to invade the United States so they sent them a letter asking to be allies. This was one of the reasons the United States to declare war on Germany. -
Germany Announces Unrestricted Submarine Warfare
Unrestricted Submarine warfare was used to sink the Lusitania. As a result of this type of warfare President Wilson threated to end diplomatic relations with Germany. -
The United States Declares War on Germany
First, the Germans sank 3 American merchant ships, then they violated the Sussex Pledge, and finallay they sent the zimmerman note all of which forced President Wilson to do something about the Germans. -
The Russian Monarchy is overthrown
The Russian Monarchy was overthrown because it was weak and unpopular with the people of Russia. The overthrowing of the monarchy was a consequence of WW1 -
Russia Signs the Treaty of Brest-Litovsk
This treaty ended Russia's participation in World War One. The treaty caused Russia to lose about 1 million square miles to other countries. -
Congress Passes the Sedition Act
More than a thousand opponants of the war were jailed under this set of laws. Some people believed that it violated the first ammendment while others thought it was essential for the war effort. -
Germany Signs the Treaty of Versailles
The Treaty of Versailles created 9 new nations. It also forced Germany to pay for the war and to take responsibility for the war.
