About: http://webisa.webdatacommons.org/18062400

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	To be sure, some slaves were smuggled into the United States after 1820 from both Africa and other places in the Western Hemisphere.
http://www.w3.org/ns/prov#wasQuotedFrom	nypl.org