the term in its english form came into use in disability activism during the 1990s. james charlton relates that he first heard the term used in talks by south african disability activists michael masutha and william rowland, who had in turn heard the phrase used by an unnamed east european activist at an earlier international disability rights conference. in 1998, charlton used the saying as title for a book on disability rights. disability rights activist david werner used the same title for another book, also published in 1998.