About: http://webisa.webdatacommons.org/111599433

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	As Arab and other Muslims had been involved in slave trading since the Middle Ages, sub-Saharan Africans were present in Spain long before the beginning of the Atlantic slave trade.
http://www.w3.org/ns/prov#wasQuotedFrom	linguistlist.org