1900-2000 By rgreeley 1900 Sigmund Freud Theory of Psychoanalysis 1903 1903 Wright Brothers first Flight 1905 Albert Einstein Theory of relativity 1908 Model T Built 1914 World War 1914 - 1918 1929 The Great Depression 1939 World War II 1939-1945 1963 President JF Kennedy shot 1986 January 28, 1986 Challenger Explosion 1989 Destruction of the Berlin Wall 2001 9/11/2001 Attack on World Trade Center, Pentagon, and US Capitol 2008 2008 Barack Obama 1st African American to be elected President
