Sign languages (also known as signed languages ) are languages that use the visual-manual modality to convey meaning, instead of spoken words. Sign languages are expressed through manual articulation in combination with non-manual markers . Sign languages are full-fledged natural languages with their own grammar and lexicon. Sign languages are not universal and are usually not mutually intelligible , although there are similarities among different sign languages.
72-483: Northern Straits Salish (also referred to as North Straits Salish) is a language composed of several mutually-intelligible dialects within the Coast Salish language family spoken in western Washington and British Columbia . The various dialects of Northern Straits Salish are often referred to as separate languages, both in historic and modern times, and although their similarities are recognized by its speakers, there
144-654: A dialect continuum , neighboring varieties are mutually intelligible, but differences mount with distance, so that more widely separated varieties may not be mutually intelligible. Intelligibility can be partial, as is the case with Azerbaijani and Turkish , or significant, as is the case with Bulgarian and Macedonian . However, sign languages , such as American and British Sign Language , usually do not exhibit mutual intelligibility with each other. Asymmetric intelligibility refers to two languages that are considered partially mutually intelligible, but for various reasons, one group of speakers has more difficulty understanding
216-521: A Deaf-community language. Contact occurs between sign languages, between sign and spoken languages ( contact sign , a kind of pidgin), and between sign languages and gestural systems used by the broader community. For example, Adamorobe Sign Language , a village sign language of Ghana, may be related to the "gestural trade jargon used in the markets throughout West Africa", in vocabulary and areal features including prosody and phonetics. The only comprehensive classification along these lines going beyond
288-484: A book in 1692 describing an alphabetic system where pointing to a body part represented the first letter of the part (e.g. Brow=B), and vowels were located on the fingertips as with the other British systems. He described such codes for both English and Latin. By 1720, the British manual alphabet had found more or less its present form. Descendants of this alphabet have been used by deaf communities, at least in education, in
360-446: A deaf man proficient in the use of a manual alphabet, "contryved on the joynts of his fingers", whose wife could converse with him easily, even in the dark through the use of tactile signing . In 1680, George Dalgarno published Didascalocophus, or, The deaf and dumb mans tutor , in which he presented his own method of deaf education, including an "arthrological" alphabet, where letters are indicated by pointing to different joints of
432-560: A forward head tilt. Some adjectival and adverbial information is conveyed through non-manual elements, but what these elements are varies from language to language. For instance, in ASL a slightly open mouth with the tongue relaxed and visible in the corner of the mouth means "carelessly", but a similar non-manual in BSL means "boring" or "unpleasant". Discourse functions such as turn taking are largely regulated through head movement and eye gaze. Since
504-470: A fully grammatical and central aspect of a sign language rather than a peripheral phenomenon. The cognitive linguistics perspective allows for some signs to be fully iconic or partially iconic given the number of correspondences between the possible parameters of form and meaning. In this way, the Israeli Sign Language (ISL) sign for ask has parts of its form that are iconic ("movement away from
576-444: A greater degree of iconicity compared to spoken languages as most real-world objects can be described by a prototypical shape (e.g., a table usually has a flat surface), but most real-world objects do not make prototypical sounds that can be mimicked by spoken languages (e.g., tables do not make prototypical sounds). However, sign languages are not fully iconic. On the one hand, there are also many arbitrary signs in sign languages and, on
648-516: A hablar a los mudos ('Reduction of letters and art for teaching mute people to speak') in Madrid. It is considered the first modern treatise of sign language phonetics, setting out a method of oral education for deaf people and a manual alphabet. In Britain, manual alphabets were also in use for a number of purposes, such as secret communication, public speaking, or communication by or with deaf people. In 1648, John Bulwer described "Master Babington",
720-680: A language of instruction and receiving official recognition, as in the case of ASL. Both contrast with speech-taboo languages such as the various Aboriginal Australian sign languages , which are developed by the hearing community and only used secondarily by the deaf. It is doubtful whether most of these are languages in their own right, rather than manual codes of spoken languages, though a few such as Yolngu Sign Language are independent of any particular spoken language. Hearing people may also develop sign to communicate with users of other languages, as in Plains Indian Sign Language ; this
792-402: A long time. However, iconicity also plays a role in many spoken languages. Spoken Japanese for example exhibits many words mimicking the sounds of their potential referents (see Japanese sound symbolism ). Later researchers, thus, acknowledged that natural languages do not need to consist of an arbitrary relationship between form and meaning. The visual nature of sign language simply allows for
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#1732836901770864-411: A manual sign. The cognitive linguistics perspective rejects a more traditional definition of iconicity as a relationship between linguistic form and a concrete, real-world referent. Rather it is a set of selected correspondences between the form and meaning of a sign. In this view, iconicity is grounded in a language user's mental representation (" construal " in cognitive grammar ). It is defined as
936-428: A real language and not merely a collection of gestures or "English on the hands." One of the prevailing beliefs at this time was that "real languages" must consist of an arbitrary relationship between form and meaning. Thus, if ASL consisted of signs that had iconic form-meaning relationship, it could not be considered a real language. As a result, iconicity as a whole was largely neglected in research of sign languages for
1008-717: A school for the deaf in 1857 in Washington, D.C., which in 1864 became the National Deaf-Mute College. Now called Gallaudet University , it is still the only liberal arts university for deaf people in the world. International Sign , formerly known as Gestuno, is used mainly at international deaf events such as the Deaflympics and meetings of the World Federation of the Deaf . While recent studies claim that International Sign
1080-475: A significant portion of the hearing community, who have deaf family and friends. The most famous of these is probably the extinct Martha's Vineyard Sign Language of the U.S., but there are also numerous village languages scattered throughout Africa, Asia, and America. Deaf-community sign languages , on the other hand, arise where deaf people come together to form their own communities. These include school sign, such as Nicaraguan Sign Language , which develop in
1152-590: A single prestige variety in Modern Standard Arabic . In contrast, there is often significant intelligibility between different North Germanic languages . However, because there are various standard forms of the North Germanic languages, they are classified as separate languages. A dialect continuum or dialect chain is a series of language varieties spoken across some geographical area such that neighboring varieties are mutually intelligible, but
1224-590: A spoken word with the same meaning. On the whole, though, sign languages are independent of spoken languages and follow their own paths of development. For example, British Sign Language (BSL) and American Sign Language (ASL) are quite different and mutually unintelligible, even though the hearing people of the United Kingdom and the United States share the same spoken language. The grammars of sign languages do not usually resemble those of spoken languages used in
1296-528: A time. Sign language, on the other hand, is visual and, hence, can use a simultaneous expression, although this is limited articulatorily and linguistically. Visual perception allows processing of simultaneous information. One way in which many sign languages take advantage of the spatial nature of the language is through the use of classifiers. Classifiers allow a signer to spatially show a referent's type, size, shape, movement, or extent. The possible simultaneity of sign languages in contrast to spoken languages
1368-415: A word from a spoken language. This is most commonly used for proper names of people and places; it is also used in some languages for concepts for which no sign is available at that moment, particularly if the people involved are to some extent bilingual in the spoken language. Fingerspelling can sometimes be a source of new signs, such as initialized signs, in which the handshape represents the first letter of
1440-435: Is a good example of this. It has only one sign language with two variants due to its history of having two major educational institutions for the deaf which have served different geographic areas of the country. Sign languages exploit the unique features of the visual medium (sight), but may also exploit tactile features ( tactile sign languages ). Spoken language is by and large linear; only one sound can be made or received at
1512-504: Is a kind of a pidgin , they conclude that it is more complex than a typical pidgin and indeed is more like a full sign language. While the more commonly used term is International Sign, it is sometimes referred to as Gestuno , International Sign Pidgin or International Gesture (IG). International Sign is a term used by the World Federation of the Deaf and other international organisations. Sign languages have capability and complexity equal to spoken languages; their study as part of
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#17328369017701584-409: Is degraded over time through the application of natural grammatical processes. In 1978, psychologist Roger Brown was one of the first to suggest that the properties of ASL give it a clear advantage in terms of learning and memory. In his study, Brown found that when a group of six hearing children were taught signs that had high levels of iconic mapping they were significantly more likely to recall
1656-447: Is more systematic and widespread in sign languages than in spoken ones, the difference is not categorical. The visual modality allows the human preference for close connections between form and meaning, to be more fully expresse, whereasdthis is more suppressed in spoken language., Sign languages, like spoken languages, organize elementary, meaningless units into meaningful semantic units. This type of organization in natural language
1728-602: Is no word for the language as a whole. The dialects of Northern Straits are as follows: ( † ) marks a dialect that has no native speakers. Northern Straits is a Salishan language within the Coast Salish branch. Among the Coast Salish languages, Northern Straits is one of the two languages in the Straits Salish branch, the other being Klallam . Klallam and Northern Straits are very closely related, but have lost mutual intelligibility. Historians have historically classified
1800-469: Is not a full language, but closer to a pidgin . Home sign is amorphous and generally idiosyncratic to a particular family, where a deaf child does not have contact with other deaf children and is not educated in sign. Such systems are not generally passed on from one generation to the next. Where they are passed on, creolization would be expected to occur, resulting in a full language. However, home sign may also be closer to full language in communities where
1872-489: Is not precisely known. Each country generally has its own native sign language; some have more than one. The 2021 edition of Ethnologue lists 150 sign languages, while the SIGN-HUB Atlas of Sign Language Structures lists over 200 and notes that there are more that have not been documented or discovered yet. As of 2021, Indo-Pakistani Sign Language is the most-used sign language in the world, and Ethnologue ranks it as
1944-426: Is often called duality of patterning . As in spoken languages, these meaningless units are represented as (combinations of) features , although coarser descriptions are often also made in terms of five "parameters": handshape (or handform ), orientation , location (or place of articulation ), movement , and non-manual expression . These meaningless units in sign languages were initially called cheremes , from
2016-487: Is putting objects into the head from books. The form is a grasping hand moving from an open palm to the forehead. The iconic correspondence is between form and concrete source. The metaphorical correspondence is between concrete source and abstract target meaning. Because the concrete source is connected to two correspondences linguistics refer to metaphorical signs as "double mapped". Sign languages may be classified by how they arise. In non-signing communities, home sign
2088-492: Is sometimes exaggerated. The use of two manual articulators is subject to motor constraints, resulting in a large extent of symmetry or signing with one articulator only. Further, sign languages, just like spoken languages, depend on linear sequencing of signs to form sentences; the greater use of simultaneity is mostly seen in the morphology (internal structure of individual signs). Sign languages convey much of their prosody through non-manual elements. Postures or movements of
2160-505: Is sometimes used to distinguish languages from dialects , although sociolinguistic factors are often also used. Intelligibility between varieties can be asymmetric; that is, speakers of one variety may be able to better understand another than vice versa. An example of this is the case between Afrikaans and Dutch . It is generally easier for Dutch speakers to understand Afrikaans than for Afrikaans speakers to understand Dutch. (See Afrikaans § Mutual intelligibility with Dutch ). In
2232-635: Is supported by the fact that there is substantial overlap between the neural substrates of sign and spoken language processing, despite the obvious differences in modality. Sign language should not be confused with body language , a type of nonverbal communication . Linguists also distinguish natural sign languages from other systems that are precursors to them or obtained from them, such as constructed manual codes for spoken languages, home sign , " baby sign ", and signs learned by non-human primates. Wherever communities of deaf people exist, sign languages have developed as useful means of communication and form
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2304-615: The varieties of Chinese , and parts of the Romance , Germanic and Slavic families in Europe. Terms used in older literature include dialect area ( Leonard Bloomfield ) and L-complex ( Charles F. Hockett ). Northern Germanic languages spoken in Scandinavia form a dialect continuum where the two furthermost dialects have almost no mutual intelligibility. As such, spoken Danish and Swedish normally have low mutual intelligibility, but Swedes in
2376-563: The Öresund region (including Malmö and Helsingborg ), across the strait from the Danish capital Copenhagen , understand Danish somewhat better, largely due to the proximity of the region to Danish-speaking areas. While Norway was under Danish rule , the Bokmål written standard of Norwegian developed from Dano-Norwegian , a koiné language that evolved among the urban elite in Norwegian cities during
2448-510: The 151st most "spoken" language in the world. Some sign languages have obtained some form of legal recognition . Groups of deaf people have used sign languages throughout history. One of the earliest written records of a sign language is from the fifth century BC, in Plato 's Cratylus , where Socrates says: "If we hadn't a voice or a tongue, and wanted to express things to one another, wouldn't we try to make signs by moving our hands, head, and
2520-639: The 18th century, which has survived largely unchanged in France and North America until the present time. In 1755, Abbé de l'Épée founded the first school for deaf children in Paris; Laurent Clerc was arguably its most famous graduate. Clerc went to the United States with Thomas Hopkins Gallaudet to found the American School for the Deaf in Hartford, Connecticut, in 1817. Gallaudet's son, Edward Miner Gallaudet , founded
2592-448: The Finger ), a pamphlet by an anonymous author who was himself unable to speak. He suggested that the manual alphabet could also be used by mutes, for silence and secrecy, or purely for entertainment. Nine of its letters can be traced to earlier alphabets, and 17 letters of the modern two-handed alphabet can be found among the two sets of 26 handshapes depicted. Charles de La Fin published
2664-629: The Greek word for hand , by analogy to the phonemes , from Greek for voice , of spoken languages. Now they are sometimes called phonemes when describing sign languages too, since the function is essentially the same, but more commonly discussed in terms of "features" or "parameters". More generally, both sign and spoken languages share the characteristics that linguists have found in all natural human languages, such as transitoriness, semanticity , arbitrariness , productivity , and cultural transmission . Common linguistic features of many sign languages are
2736-463: The Songhees people). Despite this, Klallam and the dialects of Northern Straits Salish are not mutually intelligible. Mutual intelligibility In linguistics , mutual intelligibility is a relationship between different but related language varieties in which speakers of the different varieties can readily understand each other without prior familiarity or special effort. Mutual intelligibility
2808-422: The addressee in a signed conversation must be watching the signer, a signer can avoid letting the other person have a turn by not looking at them, or can indicate that the other person may have a turn by making eye contact. Iconicity is similarity or analogy between the form of a sign (linguistic or otherwise) and its meaning, as opposed to arbitrariness . The first studies on iconicity in ASL were published in
2880-493: The associated sign, they will often invent an iconic sign that displays mimetic properties. Though it never disappears from a particular sign language, iconicity is gradually weakened as forms of sign languages become more customary and are subsequently grammaticized. As a form becomes more conventional, it becomes disseminated in a methodical way phonologically to the rest of the sign language community. Nancy Frishberg concluded that though originally present in many signs, iconicity
2952-619: The basis for the first known manual alphabet used in deaf schools, developed by Pedro Ponce de León . The earliest records of contact between Europeans and Indigenous peoples of the Gulf Coast region in what is now Texas and northern Mexico note a fully formed sign language already in use by the time of the Europeans' arrival there. These records include the accounts of Cabeza de Vaca in 1527 and Coronado in 1541. In 1620, Juan Pablo Bonet published Reducción de las letras y arte para enseñar
North Straits Salish language - Misplaced Pages Continue
3024-439: The body, head, eyebrows, eyes, cheeks, and mouth are used in various combinations to show several categories of information, including lexical distinction, grammatical structure, adjectival or adverbial content, and discourse functions. At the lexical level, signs can be lexically specified for non-manual elements in addition to the manual articulation. For instance, facial expressions may accompany verbs of emotion, as in
3096-422: The context of the communication. Classifications may also shift for reasons external to the languages themselves. As an example, in the case of a linear dialect continuum , the central varieties may become extinct , leaving only the varieties at both ends. Consequently, these end varieties may be reclassified as two languages, even though no significant linguistic change has occurred within the two extremes during
3168-424: The core of local deaf cultures . Although signing is used primarily by the deaf and hard of hearing , it is also used by hearing individuals, such as those unable to physically speak , those who have trouble with oral language due to a disability or condition ( augmentative and alternative communication ), and those with deaf family members including children of deaf adults . The number of sign languages worldwide
3240-496: The dialects themselves, with the standard Shtokavian dialect , and with other languages. For example, Torlakian, which is considered a subdialect of Serbian Old Shtokavian , has significant mutual intelligibility with Macedonian and Bulgarian . Sign language Linguists consider both spoken and signed communication to be types of natural language , meaning that both emerged through an abstract, protracted aging process and evolved over time without meticulous planning. This
3312-508: The differences accumulate over distance so that widely separated varieties may not be. This is a typical occurrence with widely spread languages and language families around the world, when these languages did not spread recently. Some prominent examples include the Indo-Aryan languages across large parts of India , varieties of Arabic across north Africa and southwest Asia, the Turkic languages ,
3384-401: The extinction of the central varieties. Furthermore, political and social conventions often override considerations of mutual intelligibility. For example, the varieties of Chinese are often considered a single language, even though there is usually no mutual intelligibility between geographically separated varieties. This is similarly the case among the varieties of Arabic , which also share
3456-421: The field of linguistics has demonstrated that they exhibit the fundamental properties that exist in all languages. Such fundamental properties include duality of patterning and recursion . Duality of patterning means that languages are composed of smaller, meaningless units which can be combined into larger units with meaning (see below). The term recursion means that languages exhibit grammatical rules and
3528-567: The fingers and palm of the left hand. Arthrological systems had been in use by hearing people for some time; some have speculated that they can be traced to early Ogham manual alphabets. The vowels of this alphabet have survived in the modern alphabets used in British Sign Language , Auslan and New Zealand Sign Language . The earliest known printed pictures of consonants of the modern two-handed alphabet appeared in 1698 with Digiti Lingua (Latin for Language [or Tongue ] of
3600-418: The following: motion, position, stative-descriptive, or handling information". The term classifier is not used by everyone working on these constructions. Across the field of sign language linguistics the same constructions are also referred with other terms such as depictive signs. Today, linguists study sign languages as true languages, part of the field of linguistics. However, the category "sign languages"
3672-605: The former British colonies India, Australia, New Zealand, Uganda and South Africa, as well as the republics and provinces of the former Yugoslavia, Grand Cayman Island in the Caribbean, Indonesia, Norway, Germany and the United States. During the Polygar Wars against the British, Veeran Sundaralingam communicated with Veerapandiya Kattabomman 's mute younger brother, Oomaithurai , by using their own sign language. Frenchman Charles-Michel de l'Épée published his manual alphabet in
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#17328369017703744-456: The hearing population has a gestural mode of language; examples include various Australian Aboriginal sign languages and gestural systems across West Africa, such as Mofu-Gudur in Cameroon. A village sign language is a local indigenous language that typically arises over several generations in a relatively insular community with a high incidence of deafness, and is used both by the deaf and by
3816-451: The late 1970s and early 1980s. Many early sign language linguists rejected the notion that iconicity was an important aspect of sign languages, considering most perceived iconicity to be extralinguistic. However, mimetic aspects of sign language (signs that imitate, mimic, or represent) are found in abundance across a wide variety of sign languages. For example, when deaf children learning sign language try to express something but do not know
3888-793: The later years of the union. Additionally, Norwegian assimilated a considerable amount of Danish vocabulary as well as traditional Danish expressions. As a consequence, spoken mutual intelligibility is not reciprocal. Because of the difficulty of imposing boundaries on a continuum, various counts of the Romance languages are given. For example, in The Linguasphere register of the world's languages and speech communities , David Dalby lists 23 languages based on mutual intelligibility: The non-standard vernacular dialects of Serbo-Croatian ( Kajkavian , Chakavian and Torlakian ) diverge more significantly from all four normative varieties of Serbo-Croatian. Their mutual intelligibility varies greatly between
3960-432: The mouth" means "something coming from the mouth"), and parts that are arbitrary (the handshape, and the orientation). Many signs have metaphoric mappings as well as iconic or metonymic ones. For these signs there are three-way correspondences between a form, a concrete source and an abstract target meaning. The ASL sign LEARN has this three-way correspondence. The abstract target meaning is "learning". The concrete source
4032-593: The non-hard-of-hearing people of the United Kingdom and the United States share the same spoken language. The grammar of sign languages does not usually resemble that of the spoken languages used in the same geographical area. To illustrate, in terms of syntax , ASL shares more in common with spoken Japanese than with English . Almost all linguists use mutual intelligibility as the primary linguistic criterion for determining whether two speech varieties represent
4104-537: The occurrence of classifier constructions , a high degree of inflection by means of changes of movement, and a topic-comment syntax . More than spoken languages, sign languages can convey meaning by simultaneous means, e.g. by the use of space , two manual articulators, and the signer's face and body. Though there is still much discussion on the topic of iconicity in sign languages, classifiers are generally considered to be highly iconic, as these complex constructions "function as predicates that may express any or all of
4176-419: The other hand, the grammar of a sign language puts limits to the degree of iconicity: All known sign languages, for example, express lexical concepts via manual signs. From a truly iconic language one would expect that a concept like smiling would be expressed by mimicking a smile (i.e., by performing a smiling face). All known sign languages, however, do not express the concept of smiling by a smiling face, but by
4248-749: The other language than the other way around. For example, if one language is related to another but has simplified its grammar , the speakers of the original language may understand the simplified language, but not vice versa. To illustrate, Dutch speakers tend to find it easier to understand Afrikaans as a result of Afrikaans's simplified grammar. Sign languages are not universal and usually not mutually intelligible, although there are also similarities among different sign languages. Sign languages are independent of spoken languages and follow their own linguistic development. For example, British Sign Language and American Sign Language (ASL) are quite different linguistically and mutually unintelligible, even though
4320-430: The output of such a rule can be the input of the same rule. It is, for example, possible in sign languages to create subordinate clauses and a subordinate clause may contain another subordinate clause. Sign languages are not mime —in other words, signs are conventional, often arbitrary and do not necessarily have a visual relationship to their referent, much as most spoken language is not onomatopoeic . While iconicity
4392-450: The people who use them, in this case, deaf people, who may have little or no knowledge of any spoken language. As a sign language develops, it sometimes borrows elements from spoken languages, just as all languages borrow from other languages that they are in contact with. Sign languages vary in how much they borrow from spoken languages. In many sign languages, a manual alphabet ("fingerspelling") may be used in signed communication to borrow
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#17328369017704464-567: The rest of our body, just as dumb people do at present?" Most of what is known about pre-19th-century sign languages is limited to the manual alphabets (fingerspelling systems) that were invented to facilitate the transfer of words from a spoken language to a sign language, rather than documentation of the language itself. Debate around European monastic sign languages developed in the Middle Ages has come to regard them as gestural systems rather than true sign languages. Monastic sign languages were
4536-433: The same geographical area; in fact, in terms of syntax, ASL shares more with spoken Japanese than it does with English. Similarly, countries which use a single spoken language throughout may have two or more sign languages, or an area that contains more than one spoken language might use only one sign language. South Africa , which has 11 official spoken languages and a similar number of other widely used spoken languages,
4608-476: The same or different languages. A primary challenge to this position is that speakers of closely related languages can often communicate with each other effectively if they choose to do so. In the case of transparently cognate languages recognized as distinct such as Spanish and Italian, mutual intelligibility is in principle and in practice not binary (simply yes or no), but occurs in varying degrees, subject to numerous variables specific to individual speakers in
4680-477: The sign for angry in Czech Sign Language . Non-manual elements may also be lexically contrastive. For example, in ASL (American Sign Language), facial components distinguish some signs from other signs. An example is the sign translated as not yet , which requires that the tongue touch the lower lip and that the head rotate from side to side, in addition to the manual part of the sign. Without these features
4752-709: The sign would be interpreted as late . Mouthings , which are (parts of) spoken words accompanying lexical signs, can also be contrastive, as in the manually identical signs for doctor and battery in Sign Language of the Netherlands . While the content of a signed sentence is produced manually, many grammatical functions are produced non-manually (i.e., with the face and the torso). Such functions include questions, negation, relative clauses and topicalization. ASL and BSL use similar non-manual marking for yes/no questions, for example. They are shown through raised eyebrows and
4824-400: The signs in a later memory task than another group of six children that were taught signs that had little or no iconic properties. In contrast to Brown, linguists Elissa Newport and Richard Meier found that iconicity "appears to have virtually no impact on the acquisition of American Sign Language". A central task for the pioneers of sign language linguistics was trying to prove that ASL was
4896-430: The student bodies of deaf schools which do not use sign as a language of instruction, as well as community languages such as Bamako Sign Language , which arise where generally uneducated deaf people congregate in urban centers for employment. At first, Deaf-community sign languages are not generally known by the hearing population, in many cases not even by close family members. However, they may grow, in some cases becoming
4968-434: The various dialects of Northern Straits and Klallam together in many ways. Linguist George Gibbs , in 1863, classified Klallam, Sooke, and Songhees as being one language, Lummi, Saanich, and Semiahmoo being another language, and Samish being a dialect of another Coast Salish language, Lushootseed . One missionary, Myron Eells, believed that Lummi was a dialect of Klallam. German anthropologist Franz Boas believed that Klallam
5040-528: Was a contact signing system or pidgin that was evidently not used by deaf people in the Plains nations, though it presumably influenced home sign. Language contact and creolization is common in the development of sign languages, making clear family classifications difficult– it is often unclear whether lexical similarity is due to borrowing or a common parent language, or whether there was one or several parent languages, such as several village languages merging into
5112-728: Was not added to the Linguistic Bibliography/Bibliographie Linguistique until the 1988 volume, when it appeared with 39 entries. There is a common misconception that sign languages are spoken language expressed in signs , or that they were invented by hearing people. Similarities in language processing in the brain between signed and spoken languages further perpetuated this misconception. Hearing teachers in deaf schools, such as Charles-Michel de l'Épée or Thomas Hopkins Gallaudet, are often incorrectly referred to as "inventors" of sign language. Instead, sign languages, like all natural languages, are developed by
5184-440: Was part of the same language as Northern Straits. Furthermore, Charles Hill-Tout , a Canadian anthropologist, classified Sooke, Saanich, Songhees, Lummi, and Klallam as one language called "Lekonenen," and Songhees as another called "Lekunen." What Hill-Tout believed to be the names of the languages were actually derived from the words lək̓ʷəŋiʔnəŋ (the Songhees name for Songhees dialect) and lək̓ʷəŋən (the Songhees name for
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