In 1939, in what became one of the most painful moments in Washington music history, celebrated African-American singer Marian Anderson was denied an opportunity to perform for an integrated audience at Constitution Hall because of her race. Then-First Lady Eleanor Roosevelt resigned her membership in the Daughters of the American Revolution, which owned and operated the concert hall. Anderson's manager, Sol Hurok, capitalized on the First Lady's support to seek federal government approval for the singer give an open-air performance instead.
On April 9 of that year, a crowd of 75,000 people, which included Secretary of the Interior Harold Ickes and Supreme Court Justice Hugo Black, gathered in front of the Lincoln Memorial and listened to Anderson sing "My Country, 'Tis of Thee" on the memorial's steps. According to the New York Times' account, six microphones carried Anderson's voice to millions of radio listeners throughout the country.