About: http://webisa.webdatacommons.org/3320458

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	Furthermore, slavery was a big, problematic issue, as the Continental Congress of 1774 had called for the abolition of slavery.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com