Image of a woman standing on a street corner during a civil rights demonstration in Monroe, North Carolina, 1961. She is holding a sign that reads: No man should be too white or too rich to pay for hi…

Image of a man at a civil rights demonstration on the streets of Monroe, North Carolina, 1961. He is carrying sign that reads: Who Runs Monroe? The Klan or The Mayor? A police officer is visible behin…

Image of a woman at a civil rights demonstration on the streets of Monroe, North Carolina, 1961. She is carrying sign that reads: Taxes Bring Industry Where Negroes Cannot Work.

Image shows a man carrying a sign that reads """"""""Civil Rights Plus Full Employment Equals Freedom"""""""" at the March on Washington for Jobs and Freedom in Washington, District of Columbia, Augus…

A woman raises her fist during a Martin Luther King Jr. rally as other marchers pass behind her, Chicago, Illinois, 1966.

Martin Luther King Jr. seated at a table with microphones in Birmingham, Alabama, circa 1963-1968.

A female protester carries a sign that reads Justice at a civil rights demonstration in Monroe, North Carolina, August 26, 1961.

View of people marching in the Cicero March, a civil rights demonstration protesting racist housing policies, in Cicero, Illinois, 1966.

An African American man holds up a sign that reads "Black Power" at the Cicero March in Cicero, Illinois, 1966.

Lines of people board buses at the March on Washington for Jobs and Freedom in Washington, D.C., August 1963.

Two women in the crowd at the March on Washington for Jobs and Freedom in Washington, D.C., August 28, 1963.

Image shows members of the National Association for the Advancement of Colored People (NAACP) in a crowd at the March on Washington for Jobs and Freedom in Washington, D.C., August 28, 1963. The Washi…

Aerial view of the crowd in front of the Lincoln Memorial Reflecting Pool, gathered for the March on Washington for Jobs and Freedom in Washington, D.C., August 28, 1963.

A woman in sunglasses holds sign that reads, "We march for/ jobs for all/ a decent pay/ NOW!" in a procession with other marchers at the March on Washington for Jobs and Freedom in Washington, Distric…

Martin Luther King Jr. in the midst of a crowd at the March on Washington for Jobs and Freedom in Washington, D.C., August 28, 1963.

Martin Luther King, Jr. speaks from behind a podium to a crowd during the March on Washington for Jobs and Freedom in Washington, District of Columbia, August 28, 1963.