GCL3410474: OCCUPY WALL STREET, 2011 Protesters at the Occupy Wall Street encampment in Zuccotti Park in New York City. Photograph, October 2011. / Bridgeman Images

GCL3410485: OCCUPY WALL STREET, 2011 A protester's sign at the Occupy Wall Street encampment in Zuccotti Park, New York City. Photograph, October 2011. / Bridgeman Images

GCL3410490: OCCUPY WALL STREET, 2011 A protester's sign at the Occupy Wall Street encampment in Zuccotti Park, New York City. Photograph, October 2011. / Bridgeman Images

GCL3410500: OCCUPY WALL STREET, 2011 A protester wrapped in a sign at the Occupy Wall Street encampment in Zuccotti Park, New York City. Photograph, October 2011. / Bridgeman Images

GCL3410504: OCCUPY WALL STREET, 2011 A sign at a health care protest, part of the Occupy Wall Street movement in New York City. Photograph, October 2011. / Bridgeman Images

GCL3410506: OCCUPY WALL STREET, 2011 A protester outside of the former St. Vincent's Hospital in New York City, as part of the Occupy Wall Street protests. Photograph, 26 October 2011. / Bridgeman Images

GCL3410509: OCCUPY WALL STREET, 2011 Protesters outside of the former St. Vincent's Hospital in New York City, as part of the Occupy Wall Street protests. Photograph, 26 October 2011. / Bridgeman Images

GCL3410513: OCCUPY WALL STREET, 2011 Protesters outside of the former St. Vincent's Hospital in New York City, as part of the Occupy Wall Street protests. Photograph, 26 October 2011. / Bridgeman Images

GCL3410516: OCCUPY WALL STREET, 2011 Protesters outside of the former St. Vincent's Hospital in New York City, as part of the Occupy Wall Street protests. Photograph, 26 October 2011. / Bridgeman Images

GCL3410517: OCCUPY WALL STREET, 2011 Protesters outside of the former St. Vincent's Hospital in New York City, as part of the Occupy Wall Street protests. Photograph, 26 October 2011. / Bridgeman Images

GCL3410518: OCCUPY WALL STREET, 2011 Protesters outside of the former St. Vincent's Hospital in New York City, as part of the Occupy Wall Street protests. Photograph, 26 October 2011. / Bridgeman Images

GCL3410523: MOROCCO: DAYCARE, 1967 Schoolboys showing their arithmetic at a daycare center in Fez, Morocco, for children of working parents. Photograph, 1967. / Bridgeman Images

GCL3410526: VETERANS ADMINISTRATION Veterans Administration poster encouraging veterans to use their G.I. Bill, 1978. / Bridgeman Images

GCL3410531: MAP: RAILWAY, 1874 A map of the Chicago, Milwaukee, and St. Paul railways, with illustrations. Map by Rand McNally & Co., 1874. / Bridgeman Images

GCL3410532: MAP: WORLD'S FAIR, 1893 Souvenir map of the World's Columbian Exposition at Jackson Park and Midway Plaisance in Chicago, Illinois. Map published by A. Zeese & Co., 1893. / Bridgeman Images

GCL3410533: MAP: CHICAGO TRAINS, c.1897 A map showing the elevated train lines of the Chicago, Rock Island and Pacific Railroad in Chicago, Illinois. Map published by Poole Bros., c.1897. / Bridgeman Images

GCL3410536: WWII: PHILIPPINES, 1941 View of the damaged Cavite Navy Yard in the Philippines after the Japanese air attacks, showing the remains of the post office and the wrecked submarine USS Sealion at the dock in the foreground. Photograph, 17 December 1944. / Bridgeman Images

GCL3410541: WWII: BURMA, 1942 Japanese troops cheering in front of the former headquarters of the British Governor General of Burma. Japanese photograph, 1942. / Bridgeman Images

GCL3410546: EDDIE RICKENBACKER (1890-1973). American aviator. Photographed on a stretcher after his rescue from being stranded in the Pacific Ocean for three weeks. Photograph, 1942. / Bridgeman Images

GCL3410547: WWII: USS ESSEX, 1945 F6F fighter planes on the deck of the USS Essex. Photograph, 19 April 1945. / Bridgeman Images

GCL3410551: WWII: AIRFIELD, 1944 British gliders of the 6th Airborne Division ready for take off. Photograph, 1944. / Bridgeman Images

GCL3410553: WWII: HELLDIVER, 1944 U.S. Navy Helldiver taking off from the deck of the USS Hancock for a strike on Manila Bay, Philippines. Photograph, 25 November 1944. / Bridgeman Images

GCL3410555: WWII: PHILIPPINES, 1945 An injured Filipino woman and her baby waiting for rescue in Manila, Philippines during the Battle of Manila. Photograph, 1945. / Bridgeman Images

GCL3410558: WWII: TROOPS, c.1944 U.S. Coast Guardsmen helping a Marine onto an assault transport after a battle on Eniwetok Atoll in the Marshall Islands. Photograph, c.1944. / Bridgeman Images

GCL3410573: WWII: USS MOBILE, c.1944 The USS Mobile under air attack by Japanese suicide bombers off Okinawa, Japan. Photograph, c.1944. / Bridgeman Images

GCL3410589: NEW YORK: STOCK EXCHANGE A view of the New York Stock Exchange and adjacent buildings on Broad Street in Lower Manhattan, New York City. Photographed in 1947. / Bridgeman Images

GCL3410593: WWII: TRAIN BOMBING Fighter pilots of the British Desert Air Force bomb two locomotives at the railyard in St. Veit, Austria, as part of an assault against enemy movement in southern Austria, c.1942. / Bridgeman Images

GCL3410596: RHINELAND MILITARIZED, 1936 Crowds of citizens salute German troops as they marched into Dusseldorf during the re-militarization of the Rhineland under chancellor Adolf Hitler on 7 March 1936, which violated the Locarno Pact of 1925. / Bridgeman Images

GCL3410602: WWII: NAVAL BATTLE, 1944 Aerial view of American bombs dropping on a Japanese merchant ship near New Guinea. Photograph, March 1944. / Bridgeman Images

GCL3410607: WWII: REMAGEN BRIDGE, 1945 American troops and anti-aircraft units at the Remagen Bridge over the Rhine River in Germany. Photograph, 20 March 1945. / Bridgeman Images

GCL3410612: WWII: GERMAN PRISONERS American Lieutenant General Omar Bradley questions German soldiers captured by U.S. ground forces, somewhere in France. Photograph, August 1944. / Bridgeman Images

GCL3410613: WWII: SOLDIERS, c.1943 American soldiers on patrol in the jungle, somewhere in the South Pacific. Photograph, c.1943. / Bridgeman Images

GCL3410620: LEBANON: BYBLOS, c.1925 Colonnade at Byblos, part of the Roman ruins of the ancient port city. Photograph, c.1925. / Bridgeman Images

GCL3410623: CHICAGO: RAILROAD, 1943 Freight cars of the Illinois Central Railroad in the terminal at South Water Street in Chicago, Illinois. Photograph by Jack Delano, April 1943., Delano, Jack (1914-97) / Bridgeman Images

GCL3410625: PABLO CASALS (1876-1973) Spanish violoncellist and conductor. Performing Antonin Dvorak's 'Concerto for Violoncello' with the Czech Philharmonic Orchestra at a recording session in Prague, Czechoslovakia, 1937. Photographed by Erich Auerbach. / Bridgeman Images

GCL3410628: PABLO CASALS (1876-1973) Spanish violoncellist and conductor. Rehearsing for the United Nations Day Concert at United Nations headquarters in New York City, 24 October 1958. / Bridgeman Images