Official Program for the March on Washington

"This program listed the events scheduled at the Lincoln Memorial during the August 28, 1963, March on Washington for Jobs and Freedom. The highlight of the march, which attracted 250,000 people, was Martin Luther King’s "I Have a Dream" speech..."
March on Washington 

March on Washington, August 28, 1963

From the National Park Service comes a visual presentation of the March on Washington, August 28, 1983
March on Washington, 8/28/1963

The 50th Anniversary of the "I Have a Dream" Speech and the March on Washington for Jobs and Freedom: Aug. 28

"On Aug. 28, 1963, Martin Luther King Jr. spoke to more than 200,000 people from the steps of the Lincoln Memorial during the March on Washington for Jobs and Freedom. His famous "I Have a Dream" speech and the march were key moments in the American Civil Rights Movement, before the landmark legislation securing voting, housing and employment rights for all Americans regardless of race. To mark the anniversary, the U.S. Census Bureau has gathered key statistics that measure changes in some characteristics of the black population to date..."
50th Anniversary of the March on Washington, August 28, 2013