Here's a breakdown of the key differences:
American Sign Language (ASL)
* Origin: Developed in the United States.
* Usage: Primarily used by the deaf community in the US and Canada.
* Grammar and Structure: Has its own unique grammatical rules and structure, distinct from spoken English.
* Sign vocabulary: Contains a large number of signs specific to American culture and language.
International Sign (IS)
* Origin: Evolved from a combination of various sign languages, primarily those used in Europe.
* Usage: Used primarily at international events and conferences where deaf individuals from different countries gather.
* Grammar and Structure: Based on a simplified structure, aiming to be understood by deaf individuals from different sign language backgrounds.
* Sign vocabulary: Consists of a core set of signs that are commonly understood across various sign languages.
Key Points:
* ASL and IS are not mutually intelligible: While some signs may be similar, the overall grammar, vocabulary, and structure are distinct.
* IS is not a true language: It is more accurately described as a communication system designed for international interaction.
* ASL is a fully-fledged language: With its own unique grammar, vocabulary, and cultural nuances.
In summary, the key difference is:
* ASL is a language specific to the deaf community in the US and Canada.
* IS is a communication system used for international interaction among deaf individuals from different sign language backgrounds.
It's important to note: There are many different sign languages worldwide, each with its own unique characteristics. While IS provides a common ground for communication, understanding between deaf individuals from different countries may still be challenging.