About: http://webisa.webdatacommons.org/137060779

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	An impression may be formed by a comparison of the several forms of the family, of the slow rate of progress in savagery, where the means of advancement wereslight, and the obstacles were formidable.
http://www.w3.org/ns/prov#wasQuotedFrom	marxists.org