About: http://webisa.webdatacommons.org/195374366

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	The city itself was a stop on the Underground Railroad that aided escaped slaves.
http://www.w3.org/ns/prov#wasQuotedFrom	newpittsburghcourieronline.com