The past decade has given rise to the amusement of creating politically-correct definitions. Merriam-Webster researchers have found the term "politically correct" in H.V. Morton's book In The Steps of Saint Paul, (1936). It was reported that the term was used in a 1793 US Supreme Court decision.
Michaelsen, O. V.
Word Ways: Vol. 32
, Article 12.
Available at: http://digitalcommons.butler.edu/wordways/vol32/iss4/12