EVB2948328: President Barack Obama greets U.S. troops at Bagram Air Field, Afghanistan. May 1, 2012 / Bridgeman Images

EVB2948423: Coretta Scott King at the Moratorium to End the War in Vietnam War, Oct. 15, 1969. Holding a candle, the widow of Martin Luther King, Jr. lead the night march to the White House / Bridgeman Images

EVB2948431: Women Marines arriving at the Hawaiian Islands with their field packs. During World War 2, Feb. 28, 1945 / Bridgeman Images

EVB2948450: Thermonuclear bomb in the U.S. Arsenal in 2011. The Mk/B53 was a high-yield bunker buster thermonuclear weapon developed in the 1960s, by the United States during the Cold War. Deployed on Strategic Air Command bombers, the B53, had a yield of 9 megatons. The last B53 was disassembled on 25 October 2011 / Bridgeman Images

EVB2948461: Farmers drinking beer during fall harvest in Jackson, Michigan. Fall 1941. In the background is a potentially dangerous harvesting machine, that requires alert workers / Bridgeman Images

EVB2949319: Governor of New York Alfred E. Smith (top, center left), during his 1928 Presidential campaign December 30, 1943 / Bridgeman Images

EVB2949358: Andrew Carnegie (1835-1919), portrait by Luis Mora / Bridgeman Images

EVB2949397: Andre Kostelanetz, c. 1980 / Bridgeman Images

EVB2949400: Andrew W. Mellon, (1855-1937), U.S. Secretary of the Treasury from 1921-1932, New York, April 1, 1932. / Bridgeman Images

EVB2949412: Russian ballet dancer Anna Pavlova (left), training with Maestro Cecchetti in her studio, St. Petersburg, Russia, c. 1910's. / Bridgeman Images

EVB2949415: Andre Previn, composer and conductor, c.1962 / Bridgeman Images

EVB2949460: Arnold Palmer, American golfer, July 22, 1971 / Bridgeman Images

EVB2949466: Arnold Palmer (right), receives the Bob Hope Desert Classic trophy after winning at Palm Springs in a sudden death playoff with Dean Beman. (L-R) former U.S. President Dwight D. Eisenhower, Deane Beman, Bob Hope, and California Governor Ronald Reagan. California, February 4, 1968 / Bridgeman Images

EVB2949511: New York Yankees. Retired outfielder Babe Ruth, c.late 1930s / Bridgeman Images

EVB2949520: New York Yankees. Retired outfielder Babe Ruth, c.early 1940s / Bridgeman Images

EVB2949550: Benedict Arnold (1741-1801), American General, and defector to the British during the Revolutionary War, c.1770s / Bridgeman Images

EVB2949562: First Lady Betty Ford at the San Deigo Zoo, San Diego, California, June 17, 1975. / Bridgeman Images

EVB2949580: Betty Jane Rase, at her divorce hearings against husband, Mickey Rooney, May 1948 / Bridgeman Images

EVB2949589: Benito Mussolini (right), Prime Minister and dictator of Italy from 1922-1943, hospitalized for wounds received in action. He is being treated by Dr. Ambrogio Binda (left), c.1916 / Bridgeman Images

EVB2949314: Alfred E. Smith makes an acceptance speech, 1928 / Bridgeman Images

EVB2949317: Former Governor of New York Alfred E. Smith, (1873-1944), on his 70th birthday, December 30, 1943. / Bridgeman Images

EVB2949341: Amelia Earhart shown just after landing at Oakland, 1935 (photo), American Photographer, (20th century) / Bridgeman Images

EVB2949356: Andrew Carnegie, 1859. / Bridgeman Images

EVB2949368: ANITA DESAI, Author, 1980. / Bridgeman Images

EVB2949374: British Prime Minister Anthony Eden, mid-1950s / Bridgeman Images

EVB2949377: Andy Griffith, Barbara Griffith and Don Knotts, ca 1964. / Bridgeman Images

EVB2949386: The Hermitage, home of President Andrew Jackson (1767-1845), Tennessee, c.1930s / Bridgeman Images

EVB2949389: Andrew Jackson (1767-1845), U.S. President 1829-1837, portrait by Thomas Sully, c.1830s / Bridgeman Images

EVB2949413: American stage actress and director Antoinette Perry, (1888-1946), c. 1910. / Bridgeman Images

EVB2949422: SADAT: ACTION BIOGRAPHY, from left: Peter Jennings, Egyptian President Anwar Sadat, December 19, 1974 / Bridgeman Images

EVB2949458: Arnold Palmer, Jack Nicklaus and Gary Player, 1962 / Bridgeman Images

EVB2949470: Astronaut John Glenn, receiving a tickertape parade after becoming the first American in orbit. Lower Broadway, New York City, March 1, 1962 / Bridgeman Images

EVT2949476: Arthur Miller, (1915-2005), American playwright and essayist, after his announcement that he and Marilyn Monroe (pictured in photograph he is holding), were engaged to be married, June 21, 1956. / Bridgeman Images

EVB2949500: Racer Barney Oldfield, and baseball great Ty Cobb, c.1930s / Bridgeman Images

EVB2949521: New York Yankees. Babe Ruth, holding umbrella during Japanese-American baseball match, Japan, 1934 / Bridgeman Images

EVB2949536: Navy lieutenant Robert Taylor during a furlough visit with wife Barbara Stanwyck before assuming his duties as a flying instructor in Livermore, California, January 21, 1944 / Bridgeman Images