About: http://webisa.webdatacommons.org/270825333

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	Sometimes, economic conditions or natural disasters caused their closure, and other times they were sacked for their wealth or destroyed in wars for territorial gain or control of the lucrative trade along the Silk route.
http://www.w3.org/ns/prov#wasQuotedFrom	thubtenchodron.org