Civil rights supporters gather in Washington, D.C., on August 28, 1963, for the March on Washington for Jobs and Freedom

On August 28, 1963, over 250,000 people participated in the March on Washington, a significant civil rights demonstration. The event included the singing of 'We Shall Overcome,' symbolizing hope and unity in the fight for equality.

Describe the atmosphere of the March on Washington based on the text.

What song is referenced in the text, and what does it signify?