EVB2949522: New York Yankees. Retired outfielder Babe Ruth, visiting the dugout at Yankee Stadium, New York City, New York, April, 1947 / Bridgeman Images

EVB2949524: New York Yankees. Retired outfielder Babe Ruth, in uniform for baseball War Bond Game, Polo Grounds, New York City, New York, 1943 / Bridgeman Images

EVB2933339: 1876 Democratic presidential candidate Samuel J. Tilden and running mate Thomas A. Hendricks. Portraits of U.S. Presidents from George Washington to Ulysses S. Grant form an arc about the central vignette / Bridgeman Images

EVB2933362: Presidential press secretary Pierre Salinger and Dr. Janet Travell reporting on President Kennedy's health in June 1961. Many of Kennedy's serious health concerns remained secret / Bridgeman Images

EVB2933376: President Roosevelt conferring with Ibn Saud, King of Arabia, aboard U.S. warship, in Cairo, Egypt, 1945 (b/w photo), Unknown photographer, (20th century) / Bridgeman Images

EVB2933394: Sigmund Freud (1856-1939), with his "secret committee" of six loyal supporters. Seated (left to right): Freud, Sandor Ferenczi, and Hans Sachs. Standing (left to right): Otto Rank, Karl Abraham, Max Eitingon, and Ernest Jones / Bridgeman Images

EVB2933396: Sigmund Freud (1856-1939), standing on sidewalk outside The Hague, Netherlands, 1920 / Bridgeman Images

EVB2933403: Alfred Kinsey (1894-1956), Harvard educated scientist, headed Indiana University's Institute for Sex Research. He shocked conventional morality with his 1948 and 1953 scientific books on human sexual behavior, 1953 portrait / Bridgeman Images

EVB2933411: Freedom Rider's bus was destroyed by a mob of whites opposing their efforts to integrate public transportation facilities in Alabama. 1961 / Bridgeman Images

EVB2933415: Stokely Carmichael (1941-1998), addressing rally in Philadelphia in 1966. As chairman of the Student Nonviolent Coordinating Committee (SNCC), he adopted the motto of "Black Power," and challenged the non-violent philosophy of Martin Luther King / Bridgeman Images

EVB2933425: Japanese-American children waving from a train window as it leaves Seattle to take them to an internment camp for the duration of World War II. March 1942 / Bridgeman Images

EVB2933437: John Lewis talks with fellow "Freedom Rider" James Zwerg who was beaten in Montgomery, Alabama, after riding into town on a Greyhound bus / Bridgeman Images

EVB2933439: Thurgood Marshall with his wife, Cecilia, and their two children, Thurgood, Jr. and John, in their New York apartment in 1961 / Bridgeman Images

EVB2933444: African American men, women, and children, employed as cotton pickers in North Carolina, 1900 / Bridgeman Images

EVB2933453: Roy Wilkins (1901-1981), leader of the National Association for the Advancement of Colored People (NAACP) from 1955-1977, during the critical years of the civil rights movement. c. 1940s / Bridgeman Images

EVB2933461: Albert Schweitzer (1875-1965) received the 1952 Nobel Prize for his medical missionary work in Gabon, African. He was an influential humanitarian, thought his writing, appealing for a universal respect for all life. 1955 / Bridgeman Images

EVB2933463: Child laborer portrayed by Lewis Hine in 1909. The barefooted boy in a George cotton mill was so small he had to climb up on the spinning frame to mend the broken threads and put back the empty bobbins, Hine, Lewis Wickes (1874-1940) / Bridgeman Images

EVB2933465: Child laborer portrayed by Lewis Hine in 1908. Sadie Pfeifer worked in a cotton mill in South Carolina, Hine, Lewis Wickes (1874-1940) / Bridgeman Images

EVB2933493: World Heavyweight Champion boxer Jack Johnson (1878-1946) and his white wife, in Vancouver, B.C. in 1909. Johnson is returning from his victory over Tommy Burns in Sydney. Johnson is playfully posed as Napoleon / Bridgeman Images

EVB2933495: Joe Louis and Max Schmeling weigh in for 1936 match. Schmeling won the fight with a 12th round knockout. On left, is Schmeling's American manager, Joe Jacobs / Bridgeman Images

EVB2933500: Wilma Rudolph (1940-1994) at the finish line during 50 yard dash at track meet in Madison Square Garden in 1961 / Bridgeman Images

EVB2933502: Female wrestlers Penny Banner and LeeChona La Claire competing in the ring in the first legal women's wrestling match, Chicago, Illinois. 1955 / Bridgeman Images

EVB2933503: Beatrice A. Hicks (1919-1979), pioneering women engineer who developed advanced sensing systems used by NASA / Bridgeman Images

EVB2933504: The Deadwood stagecoach fully loaded with nine formally dressed men sitting in and on top of coach, c. 1885 / Bridgeman Images

EVB2933511: Matthew Henson (1866-1955), African American Arctic explorer, and President Eisenhower discuss the North Pole over a globe at the White House. Mrs. Robert L. Vann, publisher of the African American newspaper, Pittsburgh Courier observes. 1954 / Bridgeman Images

EVB2933518: Bedouin maiden performing traditional sword dance. Palestine, 1919 / Bridgeman Images

EVB2933525: An organ grinder provides music for a sidewalk dance of children in a large American city. 1894 / Bridgeman Images

EVB2933530: Shakers, separated by gender, performing a step dance in the meeting hall at New Lebanon, New York. c. 1830 / Bridgeman Images

EVB2933134: Frank Sinatra (1915-1998) and his attorney, Milton Rudin (right), on the street, arriving for court appearance in Las Vegas concerning tax reports of a casino with which Sinatra had been involved. 1967 / Bridgeman Images

EVB2933141: Arturo Toscanini (1867-1957) receives the applause at Radio City on March 5, 1938 at the conclusion of the broadcast of the NBC Symphony Orchestra. Toscanini was the Orchestra's conductor from 1937-1954 / Bridgeman Images

EVB2933166: Edward Bates (1793-1869), former Whig politician was Lincoln's Attorney General. As an anti-slavery Southerner, he was a strong contender for the 1860 Republican presidential nomination, but lost it to Lincoln / Bridgeman Images

EVB2933174: Edwin M. Stanton was Lincoln's second Secretary of War. Photograph by Mathew Brady c. 1860 / Bridgeman Images

EVB2933181: John C. Breckenridge was one of four candidates running for the 1860 presidential election, and split the Democratic vote with Stephen Douglas, hence enabling the victory of Republican Abraham Lincoln. Breckenridge joined the Confederates as an active General and later as Confederate States Secretary of War / Bridgeman Images

EVB2933184: Death of Lincoln on April 15, 1865 (print) / Bridgeman Images

EVB2933188: David E. Herold a Lincoln Assassination conspirator in maniacals at the Washington Navy Yard. This photograph was taken on one of the monitors, U.S.S. Montauk and Saugus, where the conspirators were for a time confined. David Herold accompanied Lewis Powell to the home of Secretary of State William Seward on the night of April 14 / Bridgeman Images

EVB2933191: Abraham Lincoln's funeral car and procession in front of City Hall on April 25th, 1865 (engraving) / Bridgeman Images