About: http://webisa.webdatacommons.org/45684642

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	Many scholars agree that by the 19th century, Angola was the largest source of slaves not only for Brazil, but also for the Americas, including the United States.
http://www.w3.org/ns/prov#wasQuotedFrom	worldhistoryblog.com