AVE6327139: United States, 1960s: rail road transportation of military at night / Bridgeman Images

AVE6327166: United States, 1960s: US Air force plane B52 bomber takes off from runway / Bridgeman Images

AVE6327175: United States, 1960s: Soviet ships spotted by US Air force / Bridgeman Images

AVE6327178: United States, 1960s: ships en route to Cuba / Bridgeman Images

AVE6327190: United States, 1960s: military men attend church / Bridgeman Images

AVE6327193: United States, 1940s: Pedestrians on Tokyo street / Bridgeman Images

AVE6327205: United States, 1940s: Japanese leaders exit cars, Isoroku Yamamoto / Bridgeman Images

AVE6327262: United States, 1940s: Cordell Hull in office with aide / Bridgeman Images

AVE6327265: United States, 1940s: View of Hawaiian beach / Bridgeman Images

AVE6327310: United States, 1940s: Views of destroyed airplanes at Pearl Harbor / Bridgeman Images

AVE6327319: United States, 1940s: Japanese reporters at table / Bridgeman Images

AVE6327328: United States, 1940s: Water rushes from side of ship / Bridgeman Images

AVE6327389: United States, 1950s: View through windshield as car drives down steep hill / Bridgeman Images

AVE6327404: United States, 1950s: Animation of a car skidding as it travels around a bend in road / Bridgeman Images

AVE6327416: 1950s: Actor playing George Washington looks out, bows at inauguration, puts hand on heart, hand on man's Bible, surrounded by Founding Fathers / Bridgeman Images

AVE6327419: 1950s: Reenacted Thomas Jefferson and George Washington debate in convention hall with other Founding Fathers / Bridgeman Images

AVE6327425: 1950s: Reenactment of Abraham Lincoln with raised hand, swearing in / Bridgeman Images

AVE6327428: 1950s: Newspaper, civil war headline / Bridgeman Images

AVE6327469: United States, 1950s: man takes notes to boss in office / Bridgeman Images

AVE6327472: United States, 1950s: man polishes machine / Bridgeman Images

AVE6327517: United States, 1950s: animation of printing press machine / Bridgeman Images

AVE6327532: United States, 1970s: miners at shaft lift / Bridgeman Images

AVE6327541: Puerto Rico, 1960s: Boy and girl shake hands / Bridgeman Images

AVE6327547: Puerto Rico, 1960s: Fortress El Morro on the edge of the island / Bridgeman Images

AVE6327565: Puerto Rico, 1960s: Men walk down steps of government building lined with columns / Bridgeman Images

AVE6327580: United States, 1970s: man drives mine vehicle through shaft / Bridgeman Images

AVE6327616: United States, 1930s: Television antennas stand atop houses as actor Milton Berle acts / Bridgeman Images

AVE6327631: Germany, 1940s: A rocket prepares to launch in a testing facility / Bridgeman Images

AVE6327634: Germany, 1940s: A German rocket attempts to launch in 1943 / Bridgeman Images

AVE6327649: United States, 1950s: Low angle views of James Van Allen / Bridgeman Images

AVE6327703: United States, 1950s: A rocket starts to get smoke as it stands next to a launch pad / Bridgeman Images

AVE6327709: United States, 1950s: Dr. Goddard, a pioneer in rocketry, attempts to test his parachute in a field / Bridgeman Images

AVE6327715: United States, 1950s: Cars are tested in snow and on a rail track / Bridgeman Images

AVE6327465: United States, 1950s: man types numbers into machine and print receipt / Bridgeman Images

AVE6327471: 1950s: People exit stairway of building / Bridgeman Images

AVE6327474: 1950s: Assistant writes memo, man sits at desk, dictates / Bridgeman Images