About: http://webisa.webdatacommons.org/155713988

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	The ability for large segments of the population to be supported without themselves having to farm is a recent development helped by improved agricultural methods.
http://www.w3.org/ns/prov#wasQuotedFrom	straightdope.com