{{Christian Democracy}} '''''Sollicitudo Rei Socialis''''' was an Encyclical written by Pope_John_Paul_II in 1987, on the twentieth anniversary of ''Populorum_Progressio''. It is part of a larger body of writings known as Catholic_social_teaching, that trace their origin to ''Rerum_Novarum'' which was issued by Pope_Leo_XIII in 1891. ==External links== * ''Sollicitudo Rei Socialis'' at vatican website {{RC-society-stub}}