Clarence Darrow is a well-known libertarian lawyer who defended highly unpopular cases. He is most famous for is the Scopes Monkey Trial. In this case, Darrow, at the behest of the then nascent American Civil Liberties (ACLU) and in collusion with the school’s superintendent, , approached a Tennessee high school teacher to claim he had lost his position because he taught his students a theory proposed, and still unproven, that man was descended from apes.