Assertion: einsteinium | /r/HasProperty | albert ghiorso
Facets:
value: in december
type: TEMPORAL
Source sentences:
text: Einsteinium was first discovered and identified by Albert Ghiorso and his co-workers in December 1952.
text: It was identified by Albert Ghiorso and others in radioactive debris from the first large thermonuclear bomb explosion, which took place in the Pacific in November 1952.