Sign language is a language you express by using your hands and face instead of spoken words. It’s most commonly used by people in the Deaf community. How many types of sign language are there? There ...

Viewers who tune into the Super Bowl pregame show on Sunday will be treated to an unusual performance of “America the Beautiful,” which will be told, in part, through Native American sign language.

American Sign Language (ASL), used by half a million Americans, is the fourth most studied foreign language at colleges and universities. Despite its critical role for those who can't use spoken ...