About: http://webisa.webdatacommons.org/5787026

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	In the 50s and 60s there was a period when the first two numbers were the year in reverse.
http://www.w3.org/ns/prov#wasQuotedFrom	hetchins.org