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Sign language

language culture Maturity 7-9 Next article →

Sign languages are sophisticated natural languages that use a visual-manual modality. This means they convey meaning through sight and hand movements instead of spoken sounds.

Unlike spoken languages, which rely on auditory signals, sign languages use manual articulation. This involves specific hand shapes and movements. They also rely on non-manual markers. These markers include facial expressions and body movements to add meaning.

Sign languages are full-fledged systems with their own unique grammar and lexicon. They are not mere mime or simple gestures. They are the core of local deaf cultures and provide a vital means of communication for many communities.

ASL family
ASL family

To understand how sign languages work, one must look at their linguistic structure. They possess complexity equal to any spoken language. One key feature is duality of patterning. This means languages are made of small, meaningless units. These units combine to form larger units that carry meaning.

Sign language families
Sign language families

Another vital feature is recursion. Recursion allows a person to use grammatical rules to build complex sentences. For example, a person can create a subordinate clause within another clause. This allows for very deep and detailed communication. Because signs are often arbitrary, they do not always look like the object they represent. This makes them true languages rather than just acting out ideas.

Sign languages are not universal, meaning one sign language is not understood by everyone. Most countries have their own native sign language. Some nations even utilize more than one.

Lao sign language 025
Lao sign language 025

The number of these languages is difficult to track exactly. The 2021 edition of Ethnologue listed 150 sign languages. However, the SIGN-HUB Atlas of Sign Language Structures lists over 200. It also notes that many more may exist but have not been documented yet. As of 2021, Indo-Pakistani Sign Language was the most used sign language in the world. Ethnologue even ranked it as the 151st most spoken language globally.

History shows that humans have used signs for millennia. In the fifth century BC, Plato wrote about the possibility of using hands and heads to communicate.

Much of our early knowledge comes from manual alphabets. These are fingerspelling systems used to transfer spoken words into signs. In the Middle Ages, some European monastic sign languages existed. Scholars debate if these were true languages or just gestural systems. In 1620, Juan Pablo Bonet published a famous treatise in Madrid. This book was a major step in modern sign language phonetics. It included a manual alphabet to help teach deaf people how to communicate.

Arte para enseñar a hablar a los mudos
Arte para enseñar a hablar a los mudos

In Britain, manual alphabets served many different purposes. Some people used them for public speaking or for communicating with the deaf. Others used them for secret communication.

Jbulwer
Jbulwer

In 1641, John Wilkins described a system using different parts of the fingers to represent vowels and consonants. By 1648, John Bulwer wrote about a man named Master Babington. He was so skilled with a manual alphabet that his wife could talk to him in the dark using tactile signing. This means they used touch to communicate. By 1720, the British manual alphabet had reached its modern form. This system eventually spread to places like India, Australia, and the United States.

The development of formal education changed how sign languages were preserved. In the 18th century, Abbé de l'Épée founded the first school for deaf children in Paris. His manual alphabet survived in France and North America for a long time. A famous graduate, Laurent Clerc, later traveled to the United States. He worked with Thomas Hopkins Gallaudet to found the American School for the Deaf in 1817. Later, Edward Miner Gallaudet founded a school in Washington, D.C. This school became Gallaudet University. It remains the only liberal arts university in the world specifically for deaf people.

Today, sign languages connect people across borders through specialized systems. International Sign is one such example. It was formerly known as Gestuno. It is used mainly at international events like the Deaflympics or meetings of the World Federation of the Deaf. Some linguists describe International Sign as a pidgin. However, others argue it is more complex and functions like a full sign language. Whether through local native signs or international systems, these languages continue to grow. They remain essential tools for expression, culture, and human connection.

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🖼️ Images & Media (16)
File:ASL family.jpg
ASL family.jpg
Preservation of the Sign Language (1913).webm
File:Arte para enseñar a hablar a los mudos.jpg
Arte para enseñar a hablar a los mudos.jpg
Alphabets - Ghanaian Sign Language.webm
File:Jbulwer.jpg
Jbulwer.jpg
File:Holečkova, nápis ve znakové řeči.jpg
Holečkova, nápis ve znakové řeči.jpg
Keep Wales Safe This Winter- British Sign...
Hello1.ogv
Hello2.ogv
File:Sign language families.svg
Sign language families.svg
File:Lao sign language 025.jpg
Lao sign language 025.jpg
File:2017 Woodstock 022 Język migowy.jpg
2017 Woodstock 022 Język migowy.jpg

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