About: http://webisa.webdatacommons.org/125500701

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Pope Pius XI's encyclical Casti Connubii (1930) condemned all methods of birth control except periodic abstinence as 'grave sin', and this teaching was reaffirmed by Pius XII in
http://www.w3.org/ns/prov#wasQuotedFrom	nildram.co.uk