The boy launched into a violent scream and curses in Latin — a language he had never learned — every time the Catholic priest in front of him tried to cast the devil out. The ancient ritual of exorcism had to be performed at least 20 to 30 times before the job was done, The Washington Post reported in 1949, citing “Catholic sources.” A priest spent two months completing “perhaps one of the most remarkable experiences of its kind in recent religious history.”