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The assassination of Archduke Franz Ferdinand
The Black Hand, a Serbian terrorist group, assassinated Archduke Ferdinand and his wife. -
Austria-Hungary declares war on Serbia
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Germany declares war on Russia
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Germany declares war on France
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Germany invades Belgium
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Great Britain declares war on Germany
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Battle of Marne
This battle happened on Germany's way to invade Paris but the British and French troops stopped them with a battle lasting 8 days. This battle sparked the building of trenches. -
Sinking of Lusitania
This cruise liner was sunk by German U-boats near the UK coast. This was a major event that made America enter the war. This upset America because they had American passengers on this ship that died. -
Battle of Verdun
This battle was the longest single battle of World War 1. This had an impact and casualties on the French was the main reason that the British started the Battle of Somme to take the pressure off of the French. This war lasted until December 18 of 1916 -
Sinking of the Sussex
The sinking of the Sussex made America very angery againg because of American passengers on board. This lead Germany to make the Sussex pledge. This pledge said that Germany would have to warn the ship before attacking it. -
Battle of Somme
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The Zimmerman Note is Intercepted
This note said that Germany would help take back texas and the Southwest if Mexico became allies with Germany. -
Russian Revolution breaks out
These rvolutions overthrew the Czar wich got Russia a government. -
U.S. declares war on Germany
The U.S. declared war on Germany and its allies because Germany sent a telegram to Mexico saying they would help them take back Texas and the Southwest. -
Battle of Argonne Forest
This battle was the last Allied offensive of World War One that streched along the Western Front. This battle was ought from September 26 until the end of the war which was November. this was also the largest American battle with 1.2 million soldiers.
