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Sinking of the Lusitania
Germany sank a British Passenger ship, the Lusitania. killed 1,200 people including 128 Americans. -
U-boats (submarines)
U-boats were created in between 1912-1913 -
Hand Grenades
Grenades were a very useful weapon in world war one because it was so effective at clearing out enemy. -
Archduke Assassinated
Air to the throne Franz Ferdinand was assassinated by Gavrilo Princip(19 years old). He was told to by the Black Hand. -
Serbia Blammed
When Franz Ferdinand was killed, Austria blamed Serbia and declares war (The U.S. is neutral). As an effect of this Russia (who is aligned with Serbia) declares war on Austria Hungary -
Germany Invades
Germany invades belgium this begins WWI -
Tanks are introduced into Warfare
Germany is the first country that used tanks in the war. -
Zimmerman Telegram
U.S. decodes a message, for mexico saying that Mexico should invade America and if they do Germany would join Mexico with invading America -
Woodrow Wilson says the U.S. will not take sides
Woodrow Wilson says that America is not going to join the war or take sides