AVE6328760: 1920s: Women stand side by side, waving / Bridgeman Images

AVE6328778: 1920s: Woman stand around seated man on beach / Bridgeman Images

AVE6328954: United States, 1970s: cars on road at night / Bridgeman Images

AVE6328960: United States, 1970s: storm clouds form in sky / Bridgeman Images

AVE6328984: United States, 1970s: radio on table / Bridgeman Images

AVE6328987: United States, 1970s: people hide behind wall as tornado touches ground / Bridgeman Images

AVE6328999: United States, 1930s-1940s: A line of engine blocks exit a drilling machine / Bridgeman Images

AVE6329005: United States, 1930s-1940s: A worker scoops molten metal out of an electric furnace to perform a test pouring in a cylindric tester / Bridgeman Images

AVE6329047: United States, 1930s-1940s: A worker eats a pastry while looking at a book in another worker's hands / Bridgeman Images

AVE6329059: United States, 1930s-1940s: A white hot ingot slides down onto a conveyer belt / Bridgeman Images

AVE6329065: United States, 1930s-1940s: A medium shot of a factory floor with large machines / Bridgeman Images

AVE6329095: United States, 1930s-1940s: A factory worker affixes an engine part to a v8 engine block as it moves down a conveyor belt / Bridgeman Images

AVE6329104: United States, 1930s-1940s: Two factory workers place a steel sheet onto a press that shapes it into the form of a car exterior / Bridgeman Images

AVE6329146: After feeding animals, a farmer and his wife drive out in a convertible / Bridgeman Images

AVE6329161: People walk in different settings as cars drive through a highway / Bridgeman Images

AVE6329164: 1940s: Men shovel oysters into ocean / Bridgeman Images

AVE6329185: 1940s: Men empty net and throw net back into water / Bridgeman Images

AVE6329244: UNITED STATES 1960s: Tape reels / Man flips over negative. / Bridgeman Images

AVE6329256: 1970s: Car pulls over to child on the side of the road, opens door / Bridgeman Images

AVE6329274: UNITED STATES 1960s: Close up of woman / Hands hold plastic over text. / Bridgeman Images

AVE6329283: UNITED STATES 1960s: Hand press roller on picture, wipe of picture. / Bridgeman Images

AVE6329310: UNITED STATES 1960s: Montage of images. / Bridgeman Images

AVE6329325: Man on Stage Climbs Out of Sleigh / Bridgeman Images

AVE6329331: Birth Place of Television in America, 1939 / Bridgeman Images

AVE6329334: 1950s: Illustrated atom / Bridgeman Images

AVE6329340: Newsreader Reading the News to Camera / Bridgeman Images

AVE6329346: Television Executive Gives Talk to Audience About Objectivity / Bridgeman Images

AVE6329352: 1950s: Animated diagram of copper atoms / Bridgeman Images

AVE6329361: 1950s: Illustration of battery with wires and text / Bridgeman Images

AVE6329394: 1960s: Man tallies votes on television / Bridgeman Images

AVE6329397: 1950s: Wife walks to vanity table and sits / Bridgeman Images

AVE6329412: 1950s: Husband looks up and speaks / Bridgeman Images

AVE6329421: 1960s: Reporter interviews people on the street / Bridgeman Images

AVE6329442: 1950s: Wife sits with head in hand at vanity table / Bridgeman Images

AVE6329502: First Battle of Marne, Taxi Cab Army / Bridgeman Images

AVE6328904: United States, 1970s: view through windscreen of car at night / Bridgeman Images