SIGN LANGUAGE

Sign Language Evolution

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How Did Sign Language Evolve?

DATE                         EVOLUTIONARY DEVELOPMENTS
1600's

The first recorded communication between a deaf and hearing person took place.  

1620
The first sign language book was published which only contained the manual alphabet.
1775
Abbe Charles Michel de Lepee founded the first free school for deaf people. He also created a language of signs whereby each sign was a symbol of a desired concept.
1778

Samuel Heinicke established the first public school for deaf people that achieved government recognition.  He focused on manual and oral speech reading.  These two methods were the forerunners of today's concept of total communication.

1815
Thomas Gallaudet traveled to Europe to study communication with deaf people.

1817

Thomas Gallaudet founded the first school for deaf people in the U.S. and became the first U.S. deaf sign language teacher. Soon, other schools for the deaf appeared.

1863

Twenty-two schools for the deaf were established throughout the United States.

1864

Gallaudet College was founded in Washington, D.C., and remains the only liberal arts college for deaf people in the world.

1880

A conference in Milan, Italy banned sign language in all countries. It was thought to be inhuman. Sign Language became an underground language.  In America, sign language began to reappear.

1966

An ASL scientific report showed that Sign Language is a natural language and should be treated as such.

1970's

Simultaneous Communication (Simcon) or Total Communication (TC) was developed. This system allows signing and speaking at the same time.
 

1975

Rehabilitation Act of 1973. All disabled children are entitled to an equal education.  Before 1975, over half of the hearing impaired children in the United States didn't recieve equal opportunity in education. 

1980

The bilingular/bicultural approach emerged.  The deaf and the hearing community learned to live in cultures with different languages and customs.

1990

Americans with Disabilities Act required businesses to accomodate the deaf by using technologies, including sign language, to ensure equality.

Today

http://signbank.org

The United States has one of the most complete and expressive sign language systems in the world. The U.S. even has a written form called Sign Writing. (Right) is the sign for lawyer.

Sign language is the best form of communication.  Not only is it used by the deaf, but by all people to enhance their understanding of the world around them.  Because all people can use and understand sign language, it is used to break language barriers and carry information from place to place.