Martin Luther King Jr. speaks after meeting with President Lyndon B. Johnson to discuss civil rights at the White House in Washington, December 3, 1963.
Martin Luther King Jr. and Malcolm X wait for a press conference to begin in an unknown location, March 26, 1964.
Martin Luther King Jr. is seen with other civil rights leaders leaders during the civil rights March on Washington, August 28, 1963.
People carry signs for equal rights, integrated schools, decent housing and an end to bias during the civil rights March on Washington, August 28, 1963.
Civil rights leaders meet with President John F. Kennedy in the Oval Office of the White House following the civil rights March on Washington, August 28, 1963.
The wreckage of a bomb explosion near the Gaston Motel where Martin Luther King, Jr., and leaders in the Southern Christian Leadership Conference were staying during the Birmingham campaign of the Civil Rights movement, May 14, 1963.
Congress of Racial Equality members conduct a march in memory of those killed in the Birmingham bombings, carrying a sign that says "No More Birminghams" in Washington, September 22, 1963.
Participants march in a civil rights march from Selma to Montgomery, Alabama, 1965.
Martin Luther King Jr. (3rd R) is seen in an unknown location on August 5, 1965, a day before President Lyndon B. Johnson signed the Voting Rights Act into law.
People demonstrate after the assassination of Martin Luther King Jr. in front of the White House in Washington, April 1968. The sign reads: "Let his death not be in vain."
A soldier stands guard at 7th and N Street, N.W., Washington, with the ruins of buildings destroyed during the riots that followed the assassination of Martin Luther King Jr., April 8, 1968.
A "Don't work" sign promotes a day to honor the anniversary of the assassination of Martin Luther King Jr., on a shop on H Street, N.W., Washington, April 3, 1969.
James Earl Ray, the man who assassinated Martin Luther King Jr., is transported in Memphis, Tennessee, 1968.
The Martin Luther King Jr. Memorial is shown in Washington August 22, 2011. The memorial to the American civil rights leader was officially dedicated on August 28, 2011, the 48th anniversary of King's "I have a dream" speech on the Washington Mall.
