Perhaps Dr. King’s most famous act as a civil rights leader came during the March on Washington for Jobs and Freedom, on Aug. 28, 1963. The largest political rally ever seen in the US, it drew between 200,000 and 300,000 police and participants, to whom King delivered his famous “I Have a Dream” speech on the steps of the Lincoln Memorial.
Among other things, the speech advocated racial harmony and economic rights for African-Americans. Observers estimated that nearly 80 percent of the marchers were black.