-
While visiting Sarajevo, Archduke Franz Ferdinand, (heir to Austria-Hungary's throne) and his wife, Sophie, are assassinated by Gavrilo Princip (a Serbian nationalist.)
-
-
because Russia was backing Serbia, and Germany was an ally of Austria-Hungary
-
-
because Germany invaded Belgium
-
-
US President Woodrow Wilson declares that the US will remain neutral.
-
Trench warfare begins
-
UK declares that the North Sea is a military area, and they blockade goods to Germany.
-
-
puts into effect a submarine blockade
-
Germans first use poison gas
-
German U-boat sinks the British ocean liner
-
-
the longest and one of the bloodiest battles of WWI
-
the major naval battle of the war
-
tanks are first used in battle
-
Germany sends the secret Zimmerman Telegram to Mexico in an attemt to get Mexico to join the war. However, the British intercepted and deciphered the message.
-
-
-
-
Issued by US President Woodrow Wilson
-
Peace treaty between R ussia and the Central Powers
-
Baron Manfred von Richthofen (a German flying ace)
-
German Kaiser Wilhelm II abdicates and flees Germany
-
fighting ends on the 11th hour of the 11th day of the 11th month
-
officially ended WWI