EVB2936483: THE SPECTACLE SELLER. A market scene in which most of the adults are wearing spectacles. At left is a man selling spectacles; to the right is a bookseller, and shoe maker. Engraving by Jan Collaert and Joan Galle (engraving), c. 1600 / Bridgeman Images

EVB2936489: THE PHYSICIAN OF THE X-RAYS, depicts a physician using x-rays to repel Death, a skeleton wearing a shroud, as it approaches a nude young woman on an operating table. c. 1930 print by Austrian artist, Ivo Saliger (1894-1987) / Bridgeman Images

EVB2936510: Wilhelm Roentgen (1845-1923), German physicist, discoverer of X-rays, standing beside one of his machines. Photogravure, c. 1895 / Bridgeman Images

EVB2936558: Surgeons and nurses masked in preparation for surgery at U.S. Army General Hospital in Detroit, Michigan. c. 1920 / Bridgeman Images

EVB2936579: Smallpox viruses. A colorized transmission electron micrograph. 1975 / Bridgeman Images

EVB2936588: Florence Nightingale (1820-1910), ministering to soldiers at Scutari, a suburb of Istanbul (across the Bosporus from Istanbul) during the Crimean War. She defied her wealthy family by adopting the lower class profession of nursing. With her education and social position, she reformed the profession and British treatment of sick and wounded soldiers. 1854. Lithograph by Robert Riggs, c. 1930 with modern watercolor / Bridgeman Images

EVB2936651: The human circulation system, from MANSUR'S ANATOMY, authored by the Persian scholar and physician, Mansur ibn Ilyas (c. 1370-1423). The arteries are shown with the internal organs indicated in opaque watercolors. c. 15th or early 16th-century / Bridgeman Images

EVB2936705: Mexican-American young women working as carrot pullers in Edinburg, Texas. February 1939 photograph by Russell Lee, Russell, Lee (1903-86) / Bridgeman Images

EVB2936720: Elderly Irish Spinner working outdoors at her spinning wheel in the late 19th century. While picturesque, home spinning as late as 1900 indicated Ireland's the slow economic development and lack of industrialization. Galway County, c. 1900 / Bridgeman Images

EVB2936822: Crowd of Eastern European emigrants, possibly Jewish, with three Russian officials, who are reviewing their travel papers. c. 1912, Unknown photographer, (20th century) / Bridgeman Images

EVB2936825: An 'immigrant runner' carrying the child of a newly arrived immigrant family. Runner' met newcomers to promote a specific boarding house, employer, or transportation. Often immigrants themselves, they could be unscrupulous and preyed on new arrivals. c. 1870 / Bridgeman Images

EVB2936840: Wives and families of Jewish American GIs attend services in a New York City synagogue on West Twenty-third Street, on D-Day, June 6, 1944 / Bridgeman Images

EVB2936855: Mott Street in New York City's Chinatown presents a cosmopolitan scene mixing Asian and American-European dress and faces. The street is lined with restaurants, laundries, and pushcarts. c. 1900 / Bridgeman Images

EVB2936915: Anti-Immigrant cartoon showing two men with barrels as bodies, labeled 'Irish Wiskey' and 'Lager Bier', carrying a ballot box. In the background is a rioting crowd at a polling place. Nativism, a social and political movement that opposed immigration of Catholic Irish, non-Protestants, and non-English speaking peoples. c. 1850 / Bridgeman Images

EVB2946526: Workman operating an industrial loom strung with hundreds of wool threads. Chicago's Olsen Rug Company. c. 1950 / Bridgeman Images

EVB2946559: Ohio Governor John Bricker accepting the 1944 Republican vice presidential nomination. His campaign speeches attacked the 1930s New Deal policies when most citizens primary concern was World War 2. Sept. 22, 1944 / Bridgeman Images

EVB2946583: John Gates, American Communist Party member and leader in 1948. At this time he was indicted under the Smith Act for being 'dedicated to the Marxist-Leninist principles of the overthrow and destruction of the Government.' He was convicted, served five years in prison, after which he became editor of the Communist Party's newspaper, 'The Daily Worker' / Bridgeman Images

EVB2946601: Millicent Fenwick served four-terms in the House of Representatives from New Jersey from 1975-83 / Bridgeman Images

EVB2946625: African American farmer planting cotton in a plowed field in Butler County, Alabama. April 1941 / Bridgeman Images

EVB2946652: President Dwight Eisenhower smiling while golfing. c. 1954. / Bridgeman Images

EVB2946658: President Dwight Eisenhower and Secretary of State John Foster Dulles, Oct. 25, 1954. Dulles had returned from Bonn, London, and Paris, with agreements ending the occupation of and restoring sovereignty to West Germany, and providing for its admission to NATO. / Bridgeman Images

EVB2946685: Prime Minister Jawaharlal Nehru at a Capitol luncheon, Oct. 13, 1949 / Bridgeman Images

EVB2946703: Harry Truman starting his 6th year as U.S. President with a smile. Photo taken at Truman's White House office on April 12, 1950. / Bridgeman Images

EVB2946924: President Harry Truman accepts a turkey from Senator Olin Johnston of South Carolina, 1946 / Bridgeman Images

EVB2946927: President Harry Truman and First Lady Bess Truman at the Army Navy Football Game. Nov. 27, 1948. / Bridgeman Images

EVB2946790: King David Hotel from garden side in Jerusalem, Palestine, in the 1930s. The landmark luxury hotel opened in 1932. During the Jewish Insurgency in the 1940s, British military headquarters occupied sections of the hotel. / Bridgeman Images

EVB2946963: President Dwight Eisenhower with Richard and Pat Nixon after their return from East Asia. Dec. 14, 1953. The six week trip took the Nixon' to 12 Nations: Iran, Afghanistan, Pakistan, India, Ceylon, Thailand, Malaya, Vietnam, Indonesia, Republic of China, Japan and Australia. / Bridgeman Images

EVB2946796: David Ben-Gurion, at a Jerusalem camp of soldiers of the Haganah, the Jewish fighting force. Ben-Gurion, has been named as the future prime minister of the Jewish state-to-be in Palestine. April 30, 1948. / Bridgeman Images

EVB2947008: Prince Rainer and Princess Grace at Press microphones on their visit to President Eisenhower. Oct. 11, 1956. / Bridgeman Images

EVB2948406: British troops at action stations ready to provide covering fire for the infantry crossing a canal. Sept. 17-25. Operation Market-Garden planned to capture several bridges in Netherlands, but failed with 15,000 Allied casualties. A BRIDGE TO FAR, was a 1977 film based on Cornelius Ryan's 1974 book about the battle. World War 2 / Bridgeman Images

EVB2938997: Back of President Barack Obama's head in his Cabinet Room chair with a plaque noting the date of his inauguration. Jan. 29 2010., / Bridgeman Images

EVB2948436: Col. Mary Hallaren, Director of the WAC when it was fully integrated into the Army in June 1948. She served in the Women's Army Auxiliary Corps, and the Women's Army Corps during World War 2 / Bridgeman Images

EVB2948439: V-2 rocket, before launching at the U.S. Army proving grounds, White Sands, N.M. On May 7, 1946 its Flight-control instruments were adjusted on the launch pad. On May 10 it launched and reached an altitude of 112 kilometers, the first successful flight in the U.S / Bridgeman Images

EVB2948448: Encampment shanties of Brooklyn veterans in the Bonus Expeditionary Forces in Washington, D.C. Signs read: Brooklyn Bonus March; We Want Our Bonus; This is Hoovertown. Summer, 1932 / Bridgeman Images

EVB2948463: Businessmen eating at Pete's Bar in Washington Market, New York City, 1950 / Bridgeman Images

EVB2948466: Five fashion models holding hands and walking in a row with the sky as backdrop. August 1935, by Toni Frissell, Frissell, Toni (1907-88) / Bridgeman Images