Cold War TImeline By MatrixDDoS17 1945 Yalta Conference 1945 Creation of the United Nations 1945 Potsdam Conference Period: 1945 to 1981 Cold War 1946 Iron Curtain divides Europe 1947 Truman Doctrine and Marshall Plan put into place 1948 Soviet Blockade of Berlin 1948 America and Britain Airlift Supplies to Berlin 1949 Stalin ends the Blockade 1949 First Test of Soviet Atomic Bomb 1950 China and the Soviet Union Begin to Fight Jun 25, 1950 Start of the Korean War 1957 Launch of Sputnik 1960 An American Spy Plane is Shot Down and Its Pilot is Captured 1970 The Cold War's Tensions Begin to Subside Jan 20, 1981 Ronald Reagan is Elected President