Althea Gibson was a trailblazer in the enormously segregated sport of tennis. Find out more about her achievements and influence in this video.

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Live coverage at Wimbledon in 1957 captures Althea Gibson's victory. Gibson was the first African-American woman to win Wimbledon and the U.S. Nationals.

Born a slave, Booker T. Washington became one of the most celebrated educators and orators in the world. Find out more about his life and work in this video.

In a This Day in History video, learn that on July 6, 1942, thirteen year-old Anne Frank went into hiding in Amsterdam. It was World War II and across Europe Nazis were shipping Jews to concentration camps. Anne and her family took refuge in a hidden room in the building of Otto Frank's office. Anne took her diary with her and recorded her experience. But in 1944, the Franks were discovered; Anne and all her family, except her father, perished in concentration camps. But the Diary of Anne Frank gave voice to the six million Jews who were silenced in the Holocaust.

At a press conference held at the United Nations in 1979, boxing great Muhammad Ali is asked about the role of politics in sports.

On May 17, 1954, the U.S. Supreme Court ruled unanimously that racial segregation in public schools was unconstitutional. A commentary on the ruling explores the differing theories on integration at the time.

Martin Luther King, Jr. was assassinated on April 4, 1968. That same night, Robert F. Kennedy delivered the devastating news of King’s death to a group of African American supporters at a campaign rally. This is audio and video from that event.