Assertion: einsteinium | /r/HasProperty | co-workers
Facets:
value: in december
type: TEMPORAL
Source sentences:
text: Einsteinium, the seventh transuranic element of the actinide series to be discovered , was identified by Ghiorso and co-workers at Berkeley in December 1952 in debris from the first large thermonuclear explosion, which took place in the Pacific.
text: Einsteinium was first discovered and identified by Albert Ghiorso and his co-workers in December 1952.
text: Einsteinium, the seventh transuranic element of the actinide series to be discovered, was identified by Ghiorso and co-workers at Berkeley in December 1952 in debris from the first large thermonuclear explosion, which took place in the Pacific in November, 1952.