About: http://webisa.webdatacommons.org/80100496

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	Newspapers and serials from the United States and Russia are an invaluable source of information about the Russian and American frontiers.
http://www.w3.org/ns/prov#wasQuotedFrom	loc.gov