YoYa
Jedi
All I know is that American Sign Language has existed for over 200 years.
In 1817, Gallaudet and Clerc founded the "American School for the Deaf" in Hartford, Connecticut - the first established school for the deaf in the USA.
I don't know Ms. Keller or Ronnie James Dio, but I assume they were born after 1817?
I'm sorry, I didn't mean to make a noise and overlooked the fact that sign language had already been mentioned.
In 1817, Gallaudet and Clerc founded the "American School for the Deaf" in Hartford, Connecticut - the first established school for the deaf in the USA.
I don't know Ms. Keller or Ronnie James Dio, but I assume they were born after 1817?

I'm sorry, I didn't mean to make a noise and overlooked the fact that sign language had already been mentioned.