About: http://webisa.webdatacommons.org/315030013

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 1870 he went to Canada, and in 1871 he lectured, chiefly to teachers of the deaf, in Boston and other cities.
http://www.w3.org/ns/prov#wasQuotedFrom	questia.com