About: http://webisa.webdatacommons.org/16828712

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	And I am saying there are now hundreds of papers that clearly show it was worldwide and evident on every continent including Antarctica.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org