Here are the answers to your questions:
Question 1: What is the name of the place where at one time almost everybody knew sign language?
- Martha's Vineyard, MA
Question 2: American Sign Language is
- a visual/gestural language.
Question 3: In what city was the first permanent school for the deaf in America established?
- Hartford
Question 4: Who were the two men primarily responsible for the establishment of the first permanent school for the deaf in America?
- Thomas H. Gallaudet & Laurent Clerc
Question 5: Sign Language was officially recognized as a language when Gallaudet and Clerc published Sign Language Structure in 1817
- False (The work that established the legitimacy of sign language as a distinct language came later, and the publication in 1817 is not accurately attributed to that recognition process).
Let me know if you need further assistance!