About: http://webisa.webdatacommons.org/57909102

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	Firemen in Philadelphia, New York, Boston and other cities made major advances in the technology and theory of firefighting.
http://www.w3.org/ns/prov#wasQuotedFrom	firehouse.com