About: http://webisa.webdatacommons.org/298578052

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	1959 ??? Specific values for the international yard, avoirdupois pound and derived units (e.g. inch, mile and ounce) are adopted after agreement between the U.S.A., the United Kingdom and other Commonwealth countries.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org