Brave new world By aj333 Period: Apr 20, 1880 to Dec 31, 1932 Brave New World Dec 17, 1903 Wright Brother's First Flight Apr 21, 1905 Formal recognition of the office of Prime Minister Feb 24, 1913 Ecstacy is invented Apr 21, 1913 Assembly line invented Feb 2, 1914 First Tank Introduced Apr 21, 1914 World War I begins Jun 2, 1917 Red Scare Apr 21, 1918 World War I ends Apr 21, 1919 First Red Scare Apr 21, 1929 Stock Market Crashes (Great Depression)