About: http://webisa.webdatacommons.org/146367699

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	Coal was a source of energy so open to disruption that oligarchies in the West became vulnerable for the first time to mass demands for democracy.
http://www.w3.org/ns/prov#wasQuotedFrom	overstock.com