Martha's Vineyard Sign Language

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Martha's Vineyard Sign Language (MVSL) was a village sign language that was once widely used on the island of Martha's Vineyard, United States, from the early 18th century to 1952. It was used by both deaf and hearing people in the community; consequently, deafness was not a barrier to participation in public life. Deaf people who signed Martha's Vineyard Sign Language were extremely independent. The language was able to thrive because of the unusually high percentage of deaf islanders and because deafness was a recessive trait, which meant that almost anyone might have both deaf and hearing siblings. In 1854, when the island's deaf population peaked, an average of one person in 155 was deaf, while the United States national average was one in about 5,730. In the town of Chilmark, which had the highest concentration of deaf people on the island, the average was 1 in 25; at one point, in a section of Chilmark called Squibnocket, as much as 1 in 4 of the population of 60 was deaf. Sign language...

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