About: http://webisa.webdatacommons.org/189963459

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	Beginning at least as early as 1502, European slave traders shipped approximately 11 to 16 million slaves to the Americas, including 500,000 to what is now the United States.
http://www.w3.org/ns/prov#wasQuotedFrom	uh.edu