Historical clue formulations

• Civil rights activist with a Harlem thoroughfare named after him — 2020-01-28
• Organization of Afro-American Unity founder — 2019-02-03
• Organization of Afro-American Unity founder — 2012-05-19
• *Omaha-born human rights activist — 2010-11-25
• Denzel Washington role — 2000-03-04