About: http://webisa.webdatacommons.org/113512037

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	There is nothing particularly different about conditions in the latter half of the 20th century and earlier periods.
http://www.w3.org/ns/prov#wasQuotedFrom	wattsupwiththat.com