<Li> 1550: Pedro Ponce de León is credited as the first teacher of the deaf history as he developed a form a sign language and successfully teaches speech to deaf people from birth . Pedro Ponce successfully taught some deaf pupils in Spain to speak, read, and write; and it is assumed that his methods were followed by Juan Pablo Bonet, who, in 1620, published the first book on the subject of manual alphabetic signs for the deaf . It wasn't until 1885 that it was published in England as Simplification of the letters of the alphabet and method of teaching deaf - mutes to speak . This gave rise to a wider interest in the education of the deaf in Europe . </Li> <Li> 1640s: George Dalgarno proposed a totally new linguistic system for use by deaf mutes, which is still used today in the United States . </Li> <Li> 1640 until around 1653: John Bulwer proposed in several books educating deaf people using "Chirologia: or the naturall language of the hand". </Li> <Li> 1664: Thomas Willis discovered the role of the cochlea in relation to hearing </Li>

Who is considered the first teacher of the deaf