In what year was James Smith defeated and lost his heavyweight title to Mike Tyson?
Mike Tyson:  He won the WBC title in 1986 after stopping Trevor Berbick in two rounds, and added the WBA and IBF titles after defeating James Smith and Tony Tucker in 1987. James Smith (boxer): James "Bonecrusher" Smith (born April 3, 1953) is an American former professional boxer who competed from 1981 to 1999, and held the WBA heavyweight title from 1986 to 1987.
i don't know