Assertion: cerium | /r/HasProperty | discovered in bastnäs
Facets:
value: by jöns jakob berzelius
type: OTHER
value: in sweden
type: LOCATION
value: by wilhelm hisinger
type: OTHER
value: by martin heinrich klaproth
type: OTHER
Source sentences:
text: Cerium was discovered in Bastnäs in Sweden by Jöns Jakob Berzelius and Wilhelm Hisinger, and independently in Germany by Martin Heinrich Klaproth, both in 1803.