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In page Manx language:

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Manx is one of the three daughter languages of Old Irish (via Middle Irish), the other two being Irish and Scottish Gaelic. It shares a number of developments in phonology, vocabulary and grammar with its sisters (in some cases only with certain dialects) and shows a number of unique changes. There are two attested historical dialects of Manx, Northern Manx and Southern Manx.[1] A third dialect may have existed in-between, around Douglas[citation needed].