Tens of thousands of people have gathered in Washington to mark the 40th anniversary of the famous 'I have a dream' speech made by the civil rights leader Martin Luther King.
A hundred political, religious and civil rights groups joined to organise the march and to demand more justice for African-Americans.
Dr King delivered the moving speech at the Lincoln Memorial on 28 August 1963 to 250,000 people, one-fifth of them white, who had turned out for the March on Washington.
'I have a dream that one day on the red hills of Georgia, the sons of former slaves and the sons of former slaveowners will be able to sit down together at a table of brotherhood,' Dr King said.
Read the speech (or listen to an edited version through the link to This Week below)
Dr King would later receive the Nobel Peace Prize.
Martin Luther King was assassinated by a sniper at a Memphis, Tennessee, motel on 4 April 1968. The fatal shot was fired by a white man, James Earl Ray, who died in prison in 1998.
Dr King's son, Martin Luther King III, said that 40 years later, black people in the US are still suffering prejudice.
Democratic politician Jesse Jackson said the 1963 speech and march, which followed a call for jobs and freedom, set the pace for human rights struggles around the world.
