About: http://webisa.webdatacommons.org/409136250

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	The earliest known example of a rolling element bearing is a wooden ball bearing supporting a rotating table from the remains of the Roman ships in Lake Nemi, Italy.
http://www.w3.org/ns/prov#wasQuotedFrom	lmbearings.com