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Assassination of Archduke Ferdinand
A Serbian Nationalist gunned down the Archduke and his wife -
Austria-Hungary join WWI
after the assassination of the Archduke Ferdinand Austria-Hungary declared war on serbia -
U.S.A. joins WWI
The U.S. joined WWi -
The Great Depression
America's stock market crashed causing a world wide economic crash -
start of WWII
prolonged war between Japan and China -
Start of WWII
Germany invade Poland -
Creation of the Manhattan Project
The Manhattan project was created to test and create the Atomic Bomb
