History of Scottish Gaelic
All surviving dialects are Highland and/or Hebridean dialects. Dialects of Lowland Gaelic have become defunct since the demise of Galwegian Gaelic, originally spoken in Galloway, which seems to have been the last Lowland dialect and which survived into the Modern Period. By the 18th century Lowland Gaelic had been largely replaced by Lowland Scots across much of Lowland Scotland. According to a reference in "The Carrick Covenanters " by James Crichton, the last place in the Lowlands where Scottish Gaelic was still spoken was the village of Barr in Carrick: only a few miles inland to the east of Girvan, but at one time very isolated. Crichton gives neither date nor details.
Newfoundland and Labrador
Newfoundland was also the only place outside Europe to have its own distinct name in Irish: "Talamh an Éisc", which means 'land of the fish'. The Irish language is now extinct in Newfoundland. Scots Gaelic was also once spoken in the southwest of Newfoundland, following the settlement there, from the middle of the 19th century, of small numbers of Gaelic-speaking Scots from Cape Breton, Nova Scotia. Some 150 years later, the language has not entirely disappeared, although it has no fluent speakers.