About: http://webisa.webdatacommons.org/387698550

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	Secondary sources are usually written ABOUT the period under study ??? biographies, histories and other books, and articles published after your time period.
http://www.w3.org/ns/prov#wasQuotedFrom	gsu.edu