About: http://webisa.webdatacommons.org/456534713

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	In this era, a wide variety of copybooks were used, most notably ones that focused on the Spencerian hand, a system of penmanship developed about 1855 by Platt Rogers Spencer (1800-64) of Ohio.
http://www.w3.org/ns/prov#wasQuotedFrom	ncpedia.org