About: http://webisa.webdatacommons.org/243251410

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 1856, The Cooper, a circular index typewriter, which used a revolving disk, was built and in 1861, F ather Francisco Jo???o de Azevedo's made a typewriter from basic tools and materials such as wood and knives.
http://www.w3.org/ns/prov#wasQuotedFrom	issuu.com