AVE6327542: United States, 1970s: doctor points at x-rays of lungs / Bridgeman Images

AVE6327553: United States, 1970s: man inspects pipes on surface level of mine / Bridgeman Images

AVE6327555: United States, 1970s: man draws on board / Bridgeman Images

AVE6327566: Puerto Rico, 1960s: Women work on sewing machines in clothing plant / Bridgeman Images

AVE6327567: United States, 1970s: miner walks into shaft / Bridgeman Images

AVE6327568: United States, 1970s: miner drills hole in rock with machine / Bridgeman Images

AVE6327576: Puerto Rico, 1960s: Sugarcane on conveyor belt fed into processing machinery / Bridgeman Images

AVE6327586: Puerto Rico, 1960s: Beach, palm trees, mountains / Bridgeman Images

AVE6327587: Puerto Rico, 1960s: Boy and girl inside a fort / Bridgeman Images

AVE6327589: Puerto Rico, 1960s: Sign on brick wall "Department of Agriculture Forest Service US Caribbean National Forest" / Bridgeman Images

AVE6327598: Puerto Rico, 1960s: School building, American flag and Puerto Rican flag flying in front / Bridgeman Images

AVE6327600: Puerto Rico, 1960s: Teacher smiles at boy and girl in classroom / Bridgeman Images

AVE6327603: United States, 1970s: hole in mine shaft ventilation pipe / Bridgeman Images

AVE6327613: United States, 1930s: Dr. von Braun, a German leader, is seen talking to his countrymen after injuring his arm. / Bridgeman Images

AVE6327621: United States, 1930s: An astronaut gets out of his ship and wanders around in space / Bridgeman Images

AVE6327645: United States, 1950s: Scientist working on satellite / Bridgeman Images

AVE6327646: United States, 1950s: Sputnik 2 launches / Bridgeman Images

AVE6327650: United States, 1950s: Views of satellite positioned on Jupiter C rocket at night / Bridgeman Images

AVE6327654: United States, 1950s: Close up of loudspeaker / Bridgeman Images

AVE6327659: United States, 1950s: Astronauts walk towards rocket / Bridgeman Images

AVE6327662: United States, 1950s: Aerial views of highways and roads / Bridgeman Images

AVE6327665: United States, 1950s: Students walk toward Soviet university / Bridgeman Images

AVE6327683: Russia, 1950s: The Soviet Union launches a rocket into the moonlight / Bridgeman Images

AVE6327694: Russia, 1950s: A model of a space ship built by Konstantin Tsiolkovsky / Bridgeman Images

AVE6327697: Russia, 1950s: Tsiolkovsky's granddaughter recounts her grandfather's belief in rocketry / Bridgeman Images

AVE6327698: United States, 1950s: Footage of a radioactive column of particles and cloud / Bridgeman Images

AVE6327699: 1970s: Students board school bus / Bridgeman Images

AVE6328932: United States, 1970s: girl sits at controls in small plane / Bridgeman Images

AVE6328935: United States, 1970s: plane flies in sky over fields / Bridgeman Images

AVE6328936: United States, 1970s: car lights in rain at night / Bridgeman Images

AVE6328938: United States, 1970s: view of road through windscreen at night / Bridgeman Images

AVE6328942: United States, 1970s: side view as man drives car at night / Bridgeman Images

AVE6328951: United States, 1970s: Clouds over planet Earth / Bridgeman Images

AVE6328952: United States, 1970s: markings on road at night / Bridgeman Images

AVE6328957: United States, 1930s-1940s: A helmsman turns a helm to steer a ship / Bridgeman Images

AVE6328958: United States, 1930s-1940s: Large machinery on cargo ship pumps / Bridgeman Images