What two cultures have used a form of sign language native Americans and?

Native Americans and the deaf community have both developed forms of sign language. Many Indigenous tribes in North America created their own sign languages for communication, particularly in trade and intertribal interactions. Additionally, American Sign Language (ASL) emerged as a rich linguistic system within the deaf community, incorporating elements from various regional sign languages, including those from Native American cultures. These forms of sign language highlight the diversity and adaptability of human communication.