About: http://webisa.webdatacommons.org/189262026

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	Equipment and devices such as mirrors, flasks, microscopes, reading glasses, telescopes, and others did not exist in China between the 14th century right up to the early 19th century.
http://www.w3.org/ns/prov#wasQuotedFrom	knowledgesalad.com