EVB2946916: President Harry Truman about to throw the first ball at the 1951 of the season at Griffith Stadium. April 20, 1950. With the President are: Mrs. Alben Barkley, VP Alben Barkley, Bess Truman, Harry Truman, manager Bucky Harris, Clark Griffith, and NY York Yankees manager Casey Stengel. / Bridgeman Images
EVB2947086: President Eisenhower initialing the first agreement for the Peaceful use of Atomic Energy. May 3, 1955. The international 'Atoms for Peace' program that supplied nuclear equipment to schools, hospitals, and research institutions throughout the world. Nuclear reactors in Iran and Pakistan were built under the program. / Bridgeman Images
EVB2947113: Sen. William Knowland administers the Oath of Office to Vice President-elect Richard Nixon. The private swearing in ceremony took place in the East Room of the White House on Sunday, Jan. 20, 1957. At far right is Hannah Nixon with her granddaughters, Julie and Tricia. / Bridgeman Images
EVB2947241: Color television is demonstrated at Radiolympia Exhibition in London. Sept 1949. The method demonstrated employs synchronized rotating color filters in both the camera and receiver (on right), giving 50 pictures per second in the three primary colors, which the human eye blends into full color. / Bridgeman Images
EVB2947321: First Lord of the Admiralty, Winston Churchill leaves 10 Downing Street, April 7, 1940. He was leaving to address the House of Commons on the state of the French Navy during the 'Phony War' lull. The real war began 2 days later with German invasions of Denmark and Norway on April 9, 1940. / Bridgeman Images