About: http://webisa.webdatacommons.org/421756936

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	In the past Korea and Vietnam paid tributes to China under the tributary system.During WWII Japan invaded China and other Asian Nations, it also occupied their territories until China and the Allied Forces defeated Japan.
http://www.w3.org/ns/prov#wasQuotedFrom	voanews.com