Assertion: methylphenidate | /r/HasProperty | identified as stimulant
Facets:
value: in 1954
type: TEMPORAL
Source sentences:
text: Methylphenidate was first made in 1944, and was identified as a stimulant in 1954.
text: Ritalin was first made in 1944 and was identified as a stimulant in 1954.
text: Methylphenidate was first made in 1944, and was identified as a stimulant in 1954.
text: Methylphenidate was first synthesized in 1944, and was identified as a stimulant in 1954.