Irish sign Language
In 1816 British signs were brought in. In 1846 Irish signs developed in Irish Sign Language (ISL) is the sign language of Ireland. ISL is used in both Northern Ireland and the Republic of Ireland, but in Northern Ireland British Sign Language (BSL) is also used. ISL is more closely related to American Sign Language and French Sign Language than to BSL and it has influenced sign languages in Australia and South Africa and has little relation to either spoken English or Irish.The language is not grammatically related to spoken English, or spoken Irish. It's a language of the face, hands and body that's been in existence for hundreds of years. It arose around 1847 from within Deaf Communities and was developed by deaf people themselves, becoming a full and complete language. It is a visual, spatial language with its own grammar. Not only it is a language of the hands, but also of the face and of the body: it is very different to spoken English and it is maintained with a fierce pride by Irish Deaf people. It has structural features such as directional verbs and has influenced sign languages in South Africa and Australia.
A funny detail is that there are informal system which are different for males and females. Girls learn the male system during dating and marriage. In Ireland there is a committee on national sign language and an organisation for sign language teachers. People who are hearing-impair are thought Irish Sign Language in the several deaf schools of the country. Each school has about 750-800 students in each.




