About: http://webisa.webdatacommons.org/356730754

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	Replacing animal power for grinding grain, the popularity of windmills grew steadily until by 1400 there were some 10,000 in England, mostly in the East of England, Kent and Sussex.
http://www.w3.org/ns/prov#wasQuotedFrom	coriolis-energy.com