About: http://webisa.webdatacommons.org/14471118

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 voices of writers, historians, painters, poets and naturalists including Washington Irving, Francis Parkman, Henry David Thoreau, George Catlin and John Aududon became a shout for preservation by the end of the century.
http://www.w3.org/ns/prov#wasQuotedFrom	yale.edu