Assertion: sign language's history | /r/HasProperty | long
Facets:
Source sentences:
text: Though American Sign Language and some other widely utilized sign languages, such as Chinese Sign Language and Indo-Pakistani Sign Language, have long histories, they were often inaccessible to deaf families and institutions in rural, mountainous, or politically-charged regions.
text: American Sign Language has a long and interesting history.
text: Sign language has a long history behind it and ASL actually started in Europe in the 18th century.