About: http://webisa.webdatacommons.org/77403173

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	Earlier in the century, the lengthened life span was probably due to public health measures such as better sanitation, a safer water supply and control of infectious diseases.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com