About: http://webisa.webdatacommons.org/294810024

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	Greece, Rome, Egypt, Spain, England, the United States, and other countries all based their monetary systems on gold and silver at one time or another.
http://www.w3.org/ns/prov#wasQuotedFrom	dummies.com