Assertion: thalidomide's effect | /r/CapableOf | become evident
Facets:
value: by 1961
type: TEMPORAL
Source sentences:
text: By 1961, though, negative effects of the drug were becoming evident -- babies were born with severe deformities.
text: But science holds fast to the humble intellectual honesty of saying “despite all our best efforts, there is still a very slim chance of an effect that could become evident in some unknown context in the future”.