when did they start speaking english in ireland
Irish language From the 18th century on, the language lost ground in the east of the country. The reasons behind this shift were complex but came down to a number of factors:
Celts The Celts (/ˈkɛlts/ or /ˈsɛlts/, see pronunciation of Celt for different usages) were an Indo-European people in Iron Age and Medieval Europe who spoke Celtic languages and had cultural similarities,[1] although the relationship between ethnic, linguistic and cultural factors in the Celtic world remains uncertain and controversial.[2] The exact geographic spread of the ancient Celts is also disputed; in particular, the ways in which the Iron Age inhabitants of Great Britain and Ireland should be regarded as Celts has become a subject of controversy.[1][2][3][4]