About: http://webisa.webdatacommons.org/314827250

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	At the time, the cause of cholera was unknown and rapidly growing modern cities such as London, with dense populations packed into small areas, were rich breeding grounds for this disease.
http://www.w3.org/ns/prov#wasQuotedFrom	perceptualedge.com