CHX2122229: Colombia Defense (photo) / Bridgeman Images

CHX2256595: Israeli Armee Maritime Patrols Gaza (photo) / Bridgeman Images

CHX2255520: Mali-Defense-Serval-Gao (photo) / Bridgeman Images

CHX2255571: General Francois Lecointre-Eutm Mali (photo) / Bridgeman Images

EVB2955048: St. Basils Church, part of the Kremlin in Moscow / Bridgeman Images

EVB2953948: Vincentico Valdez, 1956. / Bridgeman Images

EVB2949634: Billy Graham, Evangelist preaching in Nippon Budokan Hall, Tokyo, Japan, 10/25/67 / Bridgeman Images

EVB2951114: Former President Herbert Hoover, future President and current Vice President Richard Nixon, at the opening of the Republican convention, San Francisco, California, August 19, 1956 / Bridgeman Images

EVB2950181: General Dwight Eisenhower playing golf at St. Andrews, Scotland, 1946 / Bridgeman Images

EVB2950187: General Dwight D. Eisenhower on vacation at Culzean Castle, Scotland. October 29 1951 / Bridgeman Images

EVB2949919: A model wears a pair of slacks designed by Claire Potter, c.1947. Photo: / Bridgeman Images

EVB2940492: Dramatic view of the Arctic Ocean ice during the summer melt. Sept. 9 2009 / Bridgeman Images

MEP3063770: Apostolic Palace and Saint Peter's Dome, Holy See (Vatican City State), 2007 (photo) / Bridgeman Images

HST3083663: Alfred Stieglitz, c.1909 (gelatin silver print), Steichen, Edward (1879-1973) / Bridgeman Images

MEP3111998: The twin sisters and artistic duo Alice and Ellen Kessler with the Italian singer Johnny Dorelli, Italy, 1970 (b/w photo) / Bridgeman Images

MEP3110582: A group of men watching a jewelry's window, Italy, 1962 (b/w photo) / Bridgeman Images

MEP3270041: Couple of Hungarian refugees, Unspecified, 1950 (b/w photo) / Bridgeman Images

CHX2122801: Vietnam War (photo) / Bridgeman Images

CHX2124926: Inde Jaipur Societe (photo) / Bridgeman Images

CHX2124928: Inde Jaipur Societe (photo) / Bridgeman Images

EUL411197: Lord Henry Cockburn, c.1843-48 (calotype), Hill, David Octavius (1802-70) & Adamson, Robert (1821-48) / Bridgeman Images

NYL411206: Town deities, Adonta, near Awgwash, and a medicine man with stock-in-trade, from 'Among the Ibos of Nigeria' by G. T. Basden, published 1921 (b/w photo), American Photographer, (20th century) / Bridgeman Images

NYL411225: On the St. Marc Road after heavy rains, from 'Haiti: its dawn of progress after years in a night of revolution' by John Dryden Kuser, published 1921 (b/w photo), American Photographer, (20th century) / Bridgeman Images

HST862020: Falls of the Reichenbach, c.1860 (albumen print), Braun, Adolphe (1812-77) / Bridgeman Images

MEP852125: Villa Taranto, 1870, 19th Century / Bridgeman Images

MEP2615804: Rocco e i Suoi Fratelli by Luchino Visconti, 1960 / Bridgeman Images

BLO2629814: Congress of the union of writers in Paris, february 22, 1981 (b/w photo) / Bridgeman Images

EVB2931843: 1655 map of Beijing and surrounding provinces. Cartouche shows seated figures in Chinese costume attended by servants / Bridgeman Images

EVB2931861: 1775 map showing Eastern Russian and Western North Americ. Map shows exploration routes of Vitus Bering (1778), Russian explorer Tachirikow, and many Spanish language place names. . / Bridgeman Images

MEP2829254: Bluebell Girls dancer in the dressing rooms, Italy, 1961 (b/w photo) / Bridgeman Images

EVB2936236: Robert Edward Lee (1807-1870), in the year before his death. Photo by Levin C. Handy / Bridgeman Images

EVB2933787: Japanese print by Utagawa shows two actors on the shoulders of a giant, with a third actor leaping onto the giant. c. 1825 / Bridgeman Images

EVB2936457: Daguerreotype believed to be a re-enactment of the first demonstration of ether anesthesia by Dr. William T.G. Morton at Massachusetts General Hospital on October 16, 1846 / Bridgeman Images

EVB2936467: Fully dressed female patient lying on the operating table, surrounded by the surgeons of Massachusetts General Hospital in one of the earliest operations performed under ether anesthesia. Among the surgeons is Dr. John Collins Warren, the doctor who first demonstrated surgical anesthesia / Bridgeman Images

EVB2936474: Fever Bag of the 17th century. At top a women prepares to pour cold water in to the bag at the patient's neck, which will cool the fevered patient before it empties in the a bucket at the foot of the bed. European engraving of 1672 / Bridgeman Images

EVB2936704: Lillian Wald (1867-1940), American nurse and social worker. She worked as a visiting nurse in poor neighborhoods in New York City, founded the Henry Street Settlement, and greatly influenced public health and social work / Bridgeman Images