No, there is not one single sign language. In fact, there are hundreds! Here’s a breakdown to clarify:
- Variety of Sign Languages: Estimates suggest there are around 300 distinct sign languages used globally. These languages are not dialects of a single system, but rather complete languages with their own grammar, vocabulary, and syntax.
- Regional Influences: Sign languages often develop independently within specific Deaf communities. This means the language used by a D/deaf person in the United States (American Sign Language) will be different from the language used by a D/deaf person in Great Britiain (British Sign Language).
- Not Tied to Spoken Languages: Unlike spoken languages that may share roots or evolve together, sign languages aren’t necessarily connected to the spoken languages used in a particular region. ASL and English, for instance, are very different languages.
- Similarities Can Exist: Despite their distinctiveness, there can be some overlap between sign languages, especially those from neighboring regions or with historical connections.
- Sign Language Families: Similar to spoken languages, sign languages can sometimes be grouped into families based on shared characteristics. This can help with understanding some basic signs across languages within a family.
- International Sign: While there isn’t a universal sign language, there’s a system called Gestuno designed for basic communication at international events. Gestuno borrows signs from various languages but isn’t a complete language itself.
By understanding the diversity of sign languages, you can gain a better appreciation for the communication needs of Deaf communities around the world.
