About: http://webisa.webdatacommons.org/99506595

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	Medieval millers quickly learned that the output of boat mills could be increased when they were anchored or moored close to islands, sand banks or man-made structures - most notably bridges.
http://www.w3.org/ns/prov#wasQuotedFrom	lowtechmagazine.com