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

AVE6327461: 1950s: Chair of president's desk in Oval Office / Bridgeman Images

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

AVE6327480: United States, 1950s: newspaper on printing press machine / Bridgeman Images

AVE6327495: 1950s: Hands fold up bill of legislation / Bridgeman Images

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

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

AVE6327552: Puerto Rico, 1960s: Man loads oxen-led cart with sugarcane / Bridgeman Images

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

AVE6327585: United States, 1970s: men repair hole in ventilation pipe inside mine shaft / Bridgeman Images

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

AVE6327612: United States, 1970s: man attaches pipe to ceiling of mine / Bridgeman Images

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

AVE6327751: United States, 1990s: Photographs of galaxies / Bridgeman Images

AVE6327666: United States, 1950s: Close up of Joseph Stalin / Bridgeman Images

AVE6327678: United States, 1950s: Cloud forming after a nuclear explosion / Bridgeman Images

AVE6327687: United States, 1950s: Diagram of a radioactive cloud, labelled 'early fallout' / Bridgeman Images

AVE6327512: United States, 1950s: hands place paper over printing press block / Bridgeman Images

AVE6327711: United States, 1950s: Spectators wait eagerly as those in the control room prepare to launch an event / Bridgeman Images

AVE6327572: United States, 1970s: man in science lab / Bridgeman Images

AVE6327750: 1970s: Teacher speaks to class / Bridgeman Images

AVE6327762: United States, 1990s: Zoom out on illustration of galaxy / Bridgeman Images

AVE6327617: United States, 1930s: A dog prepares to go to space with different tests / Bridgeman Images