Original: With Thomas Hopkins Gallaudet, he co-founded the first school for the deaf in North America, the Hartford Asylum for the Education and Instruction of the Deaf and Dumb on April 15, 1817 in the old Bennet's City Hotel, Hartford, Connecticut.
Simplified: Deaf people in America respected Clerc and call him the "Father of the Deaf" because he founded the first school for the deaf in America in Hartford, Connecticut. Clerc and Thomas Hopkins Gallaudet founded that school on April 15, 1817 in an old hotel.