About: http://webisa.webdatacommons.org/200427747

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	Sheila Sindelar writes: In his view, this model was a means to bring about nothing less than the emancipation of the working classes of his time, and he began using it to address social and political problems in 1857.
http://www.w3.org/ns/prov#wasQuotedFrom	collectorsweekly.com