About: http://webisa.webdatacommons.org/334047135

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	Beginning around 600 BC, each Greek city-state minted (made) its own kinds of coins (They seem to have gotten the idea from the Lydians in West Asia).
http://www.w3.org/ns/prov#wasQuotedFrom	historyforkids.org