1881 Language Map of Great Britain and Ireland

This 1881 map is pretty consistent with the orthodox understanding of the language question on the 1911 Census of Ireland and the "scoring out" of thousands in demographically predominantly Ulster-Scots regions who had self-completed their census forms wrongly. Some activist types have (bizarrely) claimed this was not the correcting of errors, but some kind of widespread state suppression. The narrowing of the once-understood diverse possibilities of what the term 'Irish' can mean has corroded our society. There are various previous posts here about it - here's one example.