About: http://webisa.webdatacommons.org/281633638

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	While the railroad was an important technical development in the 19th century, radio emerged as a seismic change in the 20th century.
http://www.w3.org/ns/prov#wasQuotedFrom	typepad.com