About: http://webisa.webdatacommons.org/223107524

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	Early commercial aviation, both transport and mail relied on the iron compass as a navigational aid and the El Paso and Southwestern Railroad running from Douglas to El Paso was an ideal navigational aid along a southern route.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com