Celtic literature, the body of writings composed in Gaelic and the languages derived from it, Scottish Gaelic and Manx, and in Welsh and its sister languages, Breton and Cornish. For writings in English by Irish, Scottish, and Welsh authors, see English literature. French-language works by Breton authors are covered in French literature. The introduction of Celtic into Ireland has not been authoritatively dated, but it cannot be later than the arrival there of the first settlers of the La Tène culture in the 3rd century bc. The language is often described in its earliest form as Goídelic, named after the
Celtic literature, the body of writings composed in Gaelic and the languages derived from it, Scottish Gaelic and Manx, and in Welsh and its sister languages, Breton and Cornish. For writings in English by Irish, Scottish, and Welsh authors, see English literature. French-language works by Breton