Assertion: lithium | /r/HasProperty | discovered by johan august arfvedson
Facets:
value: during an analysis of petalite ore
type: TEMPORAL
value: in 1817
type: TEMPORAL
Source sentences:
text: Lithium was discovered by Johan August Arfvedson in 1817 during an analysis of petalite ore, an ore now recognised to be LiAl(Si 2 O 5 ) 2 , taken from the Swedish island of Utö.