Cold War US History Timeline By Cooldu6 Period: Feb 11, 1945 to Dec 8, 1991 Cold War Aug 6, 1945 United States First Uses Atom Bomb in War Oct 1, 1949 Chinese Communist Mao Zedong Takes Control of China Feb 4, 1950 US Senator Joe McCarthy Begins Communist Witch Hunt Jan 1, 1959 Cuba Taken Over by Fidel Castro Aug 17, 1961 Construction Begins on Berlin Wall Jul 20, 1969 Apollo 11 Lands on the Moon May 24, 1972 SALT I Signed Jun 18, 1979 SALT II Signed Mar 11, 1985 Mikhail Gorbachev Takes Power in the USSR Nov 9, 1989 Berlin Wall Falls May 29, 1990 Boris Yeltsin Elected President of Russia Dec 8, 1991 Dissolution of the Soviet Union; End of Cold War