The American Sign language was introduced by Thomas Hopkins Gallaudet and Laurent Clerc at the American School for the Deaf in 1817. It is greatly influenced by the French sign language and is very similar to it.
Certain norms, known as 'Good Form' are followed while using the sign language alphabets.
-The hands should remain in place and should not bounce in between letters. The hands can bounce to indicate the repetition of alphabets.
-Use of a brief gap between two terms should be made to signify the start and end of the terms.
-The hand used for signing the alphabets should be placed at shoulder height.
-While signing acronyms, the alphabets should be moved in a small circle so that they are not spelled as one word.
-Use of long fingernails and jewelry should be avoided.
-A consistent pace should be maintained.
The sign language alphabets are used commonly among the deaf community and people dealing with the deaf can also make effective use of this form of communication.