Civil Rights March on Washington / African American civil rights leader, Asa Philip Randolph makes statement after Martin Luther King speech: I think history was written today, which will have its effect on coming generations with...

/ crowds attending the Million Man March / views of crowds / woman speaking to crowds / Rosa Park giving speech. Rosa Parks giving speech at Million Man March on October 16, 1995 in Washington, DC (Footage by Getty Images)

/ church service and sermon / people getting on buses on their way to the March on Washington, they wave at camera / Lexington Avenue street sign. People depart to attend the March on Washington on August 27, 1963 in New York, New York...

Black and whites march in Washington, Civil Rights

/ people with hands clasped singing, 'We Shall Overcome' the night before the event / young women shouting 'Freedom' / CU faces. Crowds gather the night before the March on Washington on August 27, 1963 in Washington, DC (Footage by...

/ African American and caucasian people traveling on bus to attend the March on Washington for Jobs and Freedom / people talking, laughing, and looking contemplative. People traveling on bus to the March on Washington on August 27, 1963 ...

Black and whites marching during Civil Rights

Police and protestors during Civil Rights

Police and protestors during Civil Rights

Crowds of South African, men and a few women, demonstrating in civil rights protest against Apartheid, carrying signs written in English Anti-Apartheid protest on January 01, 1960 in South Africa (Footage by Getty Images)

/ President John F Kennedy giving a speech after the continued segregation of African American students from the University of Alabama / He concludes: 'The fires of frustration and discord are burning in every city, North and South,...

/ bus driver hands out Freedom Now banners to wear in their hats. People on the bus to attend the March on Washington on August 28, 1963 in Washington, DC (Footage by Getty Images)

/ volunteers in New York make sandwiches for attendees at the March on Washington / conveyor belt carries boxes of food / organizers handing out March on Washington buttons to wear. Volunteers supply food for March on Washington...

/ March on Washington headquarters tent / people make placards and signs. Organizers prepare for the March on Washington on August 27, 1963 in Washington, DC (Footage by Getty Images)

United Nations Human Rights Council headquarters, Geneva, Switzerland United Nations Human Rights Council at UN Human Rights Council on May 04, 2011 in Geneva, Switzerland (Footage by Getty Images)

Human Rights Campaign (HRC) headquarters building in Washington DC Human Rights Campaign headquarters building on November 21, 2010 in Washington, DC (Footage by Getty Images)

Civil rights march, which became riot resulting in death of 14 catholic people / Protesters at barricade set up by British military, protestors stone throwing, angry scenes, some spitting / Soldiers in riot gear / Protestors holding...

Two white ladies with signs, one being interviewed during Civil Rights

Residents of Al Qusayr gather for the funeral procession and burial of Mohammad Ammar, killed from heavy artillery shelling while delivering supplies to the frontlines and evacuating wounded. Funeral procession, prayers in the mosque,...

US President Barack Obama comments on the 1-year anniversary of the death of Osama bin laden. Separately, the detention of Chen GuangCheng, the blind Chinese dissident. Japanese Prime Minister Yoshihiko Noda present U.S. President Barack...

Interview with American political activist and author Angela Davis in prison in Marin County Jail. Prison interview with activist Angela Davis on January 01, 1971 in California (Footage by Getty Images)

Interview with American political activist and author Angela Davis in prison in Marin County Jail. Prison interview with activist Angela Davis on January 01, 1971 in California (Footage by Getty Images)

Interview with American political activist and author Angela Davis in prison in Marin County Jail. Prison interview with activist Angela Davis on January 01, 1971 in California (Footage by Getty Images)