Let's trace the birth of an idea. It's born as rampant radicalism, then it becomes progressivism, then liberalism, then it becomes moderated conservative, outmoded, and gone.
Source: In Who Speaks for the Negro?, by Warren, 1966.
-- Adam Clayton Powell, ( 1908-1972), US politican, pastor; He first ran for Congress, in 1944; became a prominent liberal legislator and civil-rights leader.