About: http://webisa.webdatacommons.org/80697237

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	It allowed the development of writing and metallurgy and other skills... and ruling castes to ensure that it all happened smoothly.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com