AVE6326930: United States, 1960s: strikers raise fists / Bridgeman Images

AVE6326933: United States, 1950s: view through trees in mountains / Bridgeman Images

AVE6327910: 1960s: Glass tube over Bunsen burner flame / Bridgeman Images

AVE6327916: America, c.1990s: Video from inside space shuttle Endeavour of satellite in orbit / Bridgeman Images

AVE6327919: 1960s: Girl adjusts glassware with clamp / Bridgeman Images

AVE6327922: 1960s: Hand lights Bunsen burner with match / Bridgeman Images

AVE6327937: 1960s: Hand moves test tube in and out of flame / Bridgeman Images

AVE6327943: 1960s: Girl turns off water faucet / Bridgeman Images

AVE6327967: United States, 1950s: Rocket on launch pad at night / Bridgeman Images

AVE6328012: United States, 1950s: Two children walk along the rubble from the destruction caused by the German V2 rocket / Bridgeman Images

AVE6328015: United States, 1950s: Soldiers land on a seashore as cannons fire at their target / Bridgeman Images

AVE6328018: United States, 1950s: One by one, American soldiers find their way to European seashores / Bridgeman Images

AVE6328039: United States, 1940s: People taking down posters / Bridgeman Images

AVE6328060: United States, 1940s: Shot of cupboard / Bridgeman Images

AVE6328066: United States, 1940s: Teenagers holding banner / Bridgeman Images

AVE6328075: United States, 1960s: Stars in space / Bridgeman Images

AVE6328102: United States, 1960s: Cartoon piggybank and ten pennies / Bridgeman Images

AVE6328105: United States, 1960s: upside down piggy bank shaken / Bridgeman Images

AVE6328114: Europe, 1940s: photo of man in uniform on ground / Bridgeman Images

AVE6328126: Europe, 1940s: boy in street / Bridgeman Images

AVE6328132: Europe, 1940s: people walk to funeral in black clothes / Bridgeman Images

AVE6328147: Europe, 1940s: hand fills container with water / Bridgeman Images

AVE6328150: United States, 1960s: man writes E=MC2 on blackboard / Bridgeman Images

AVE6328165: Europe, 1940s: baby cries in crib / Bridgeman Images

AVE6328195: Europe, 1940s: men and women eat food in building rubble / Bridgeman Images

AVE6328198: UNITED STATES: 1981: People looking up at sky as space shuttle takes off. / Bridgeman Images

AVE6327044: United States, 1970s: After a service, a member of a cult turns off the flames of a candles at the alter and holds hands with the cult's leader / Bridgeman Images

AVE6327047: United States, 1970s: A woman listens intently as a fortune teller explains her readings / Bridgeman Images

AVE6327050: United States, 1970s: Naked, a group of people raise their hands to worship / Bridgeman Images

AVE6327071: United States, 1970s: Vehicles drive through the Golden Gate Bridge as fog fills the surrounding area / Bridgeman Images

AVE6327173: United States, 1960s: Man looks through binoculars from bridge of ship / Bridgeman Images

AVE6327176: United States, 1960s: low level plane flies over Cuba / Bridgeman Images

AVE6327209: United States, 1940s: Dissolve to close up of ship guns / Bridgeman Images

AVE6327212: 1940s: Man rides horse up to building, dismounts / Bridgeman Images

AVE6327221: United States, 1940s: Aerial view of smoke trail from plane / Bridgeman Images

AVE6327242: United States, 1940s: Japanese soldiers on carrier run to planes / Bridgeman Images