Here's why:
* ASL is a distinct language: It has its own grammar, syntax, and vocabulary, separate from English. Helen Keller primarily used a form of finger spelling, which is not the same as ASL.
* Helen Keller's communication: Helen Keller communicated primarily through finger spelling, tactile signing, and lip reading. She did not use ASL.
* Annie Sullivan's role: Annie Sullivan was a teacher and advocate for Helen Keller. She focused on teaching Helen how to communicate through touch, lip reading, and finger spelling, not ASL.
While Helen Keller and Annie Sullivan did not contribute directly to ASL, their story:
* Increased awareness of the deaf and blind communities: Their struggles and triumphs highlighted the importance of communication and education for people with disabilities.
* Advocacy for inclusion: They challenged societal assumptions about deaf and blind people, leading to greater understanding and acceptance.
The development of ASL:
* ASL developed organically within the Deaf community in the United States.
* It is a vibrant and complex language with a rich history and culture.
* Deaf educators played a crucial role in shaping and formalizing ASL.
So, while Helen Keller and Annie Sullivan were important figures in the history of disability rights, they did not directly contribute to the development of American Sign Language. Their legacy lies in their advocacy for communication access and inclusion for people with disabilities.