About: http://webisa.webdatacommons.org/62169767

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	Great Britain adopted this plan during World War I (1914-1918) and the United States used the plan for the first time after World War I. But until 1966, individual states or cities had the option whether to use the plan or not.
http://www.w3.org/ns/prov#wasQuotedFrom	home-school.com