About: http://webisa.webdatacommons.org/373682758

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	1. 1452 (June 18) Dum diversas: Nicholas V Authorizes Afonso V of Portugal to reduce any Muslims, pagans and other unbelievers to perpetual slavery.
http://www.w3.org/ns/prov#wasQuotedFrom	agniveer.com