About: http://webisa.webdatacommons.org/274124396

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	Over the 1970s and into the 1980s and 1990s, a sort of number converged on about 40,000 years, and it was very much driven by radiocarbon dating, which had been developed since the Second World War.
http://www.w3.org/ns/prov#wasQuotedFrom	nma.gov.au