Assertion: american sign language | /r/HasProperty | extended into nicaragua
Facets:
value: by the 1980s
type: TEMPORAL
Source sentences:
text: Whereas American Sign Language could have extended into Nicaragua by the 1980s, as it did in neighboring Costa Rica where it combined with a locally developed sign language in the 1960s, Nicaragua’s geo-political isolation prevented ASL from entering the country, notes Shepard-Kegl.