About: http://webisa.webdatacommons.org/201977306

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	Although Illinois was a free state, the Black Laws took measures to ensure that slaves did not earn their freedom in Illinois.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com