Coretta Scott King, center, accompanied by the Rev. Ralph Abernathy, her children, and singer Harry Belafonte, leads a march in Memphis to honor her husband who was assassinated four days earlier. AP hide caption
Martin Luther King
Martin Luther King, Jr. speaking to a mass meeting at the Mason Temple in support of striking sanitation workers. Memphis Press-Scimitar/University of Memphis Libraries Special Collections hide caption
When MLK Was Killed, He Was In Memphis Fighting For Economic Justice
Tennessee National Guard troopers in jeeps and trucks escort a protest march by striking sanitation workers through downtown Memphis, March 30, 1968. LG/AP hide caption
Georgia Gilmore adjusts her hat for photographers in 1956 during the bus boycott trial of Rev. Martin Luther King Jr. in Montgomery, Ala. She testified: "When you pay your fare and they count the money, they don't know the Negro money from white money." AP hide caption
Meet The Fearless Cook Who Secretly Fed — And Funded — The Civil Rights Movement
The nonviolent actions of Dr. King inspired young Kennedy Odede. In this March 21, 1965 file photo, King leads a civil rights march across the Edmund Pettus Bridge in Selma, Ala., to protest voting laws. AP hide caption
Rep. Louis Stokes was the dean of the Ohio congressional delegation until he stepped down in 1999. Tony Dejak/AP hide caption
Martin Luther King Jr., with his wife, Coretta, at a Harlem hospital after he was stabbed by Izola Ware Curry in 1958. AP hide caption
Historian Peniel Joseph says criticism of the film Selma as historically inaccurate is misguided, and that the movie correctly portrays African-Americans as the drivers of the civil rights movement. Kelvin Ma/Peniel Joseph hide caption
John Mbugua and his son Giovanni Mbugua, 6, of San Jose, Calif., and Lavon Johnson and his son Mason Johnson, 2, of Fort Meade, Md., greet one another while marching with thousands of other people from Capitol Hill to the Lincoln Memorial on Wednesday. Chip Somodevilla/Getty Images hide caption
Civil rights leader Martin Luther King waves to supporters from the steps of the Lincoln Memorial on Aug. 28, 1963, in Washington. AFP/Getty Images hide caption
Under Construction: A recent survey of Americans found that fewer than half believe the U.S. has made substantial progress toward racial equality. Here, the Martin Luther King Jr. Memorial in Washington, D.C., is boxed in by scaffolding as work is done on it. Pablo Martinez Monsivais/AP hide caption
The 'Star Trek' actress had to be talked into the role of Lt. Uhura in the franchise's big screen reboot by her mother and friends. The original Lt. Uhura was urged to not quit by Martin Luther King. Paramount Pictures hide caption