About: http://webisa.webdatacommons.org/297328338

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 science of medieval demography relies on various lines of evidence, such as administrative records, wills and other types of records, archaeological field data, economic data, and written histories.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org