Assertion: condom | /r/MadeOf | vulcanized rubber
Facets:
value: since the 1840s
type: TEMPORAL
value: since the 1930s
type: TEMPORAL
Source sentences:
text: Since the 1840s most condoms have been made of vulcanized rubber or, since the 1930s, of latex.
text: Since the 1840s most condoms have been made of vulcanized rubber or, since the 1930s, of latex.