The changes of manual Alphabets in the world

Tóm tắt

Manual Alphabet (MA) is a integral part of sign language used by Deaf people in social and academic contexts. It is considered as a bridge between sign language and script which effectively contributes to Deaf education. Examine the variations of the MA across countries compared to the first MA (published by Juan Pablo Bonet in Spain, 1620) to determine the degree of the change,
development and interference of sign language (SL) systems in the world.