Transcription: There are more than 200,000 thronging them all, a crowd that is bigger than the most optimistic forecasts. They move with good humor, laughter, and song. Few realize that in a sense they are participants in an historical day. It will become part of the American scene that today's gathering is the largest in Washington's history. The men who organized the rally walk with springing steps toward the speaker stand. On the left, Roy Wilkins with A. Philip Randolph. In the van is Martin Luther King, who has been jailed twelve times on racial issues. I have a dream that one day this nation will rise ...