About: http://webisa.webdatacommons.org/178091185

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	Slave owners all through the region, including New Jersey, Delaware, and Eastern Shore Maryland, set their slaves free in exchange for long-term indentures and had them sent to Philadelphia to be sold.
http://www.w3.org/ns/prov#wasQuotedFrom	slavenorth.com