Vint Cerf speaks on stage at The 23rd Annual Webby Awards on May 13, 2019 in New York City. Noam Galai/Getty Images for Webby Awards Vint Cerf retired from Google on July 7 after 21 years as the ...

Abstract: Sign language is a visual language that encompasses all linguistic features of natural languages and serves as the primary communication method for the deaf and hard-of-hearing communities.