The Rev. Al Sharpton and Martin Luther King III join other politicians and activists to celebrate the 50th anniversary of the 1963 March on Washington and to commemorate the famous “I Have a Dream” speech of King’s father, the Rev. Martin Luther King Jr. Tens of thousands of people marched to honor the historic events, pledging that the Rev. King’s dream also includes equality for gays, Latinos, the poor and the disabled. The event was an homage to a generation of activists that endured fire hoses, police abuse and indignities to demand equality for African Americans. But there was a strong theme of unfinished business.