The written language of Irish was first found in the Oghum inscription , which was inscribed around the 4th century BC as primitive Irish. The first Irish language evolved to the Old Irish. Between the 5th century and the 6th century, old Irish scriptures began to use Latin letters and began to appear in marginalia of the Latin script. At this stage, words from Latin entered the Irish language. Through the old Welsh language Especially terms related to business And the monastic encyclopedia base. Irish or in Ireland (Gaeilge), sometimes called Gaelic ( English : Gaelic ) or Irish Gaelic is the language of Point de language, one that is. The Indo-European language family has roots in Ireland. Which is spoken in the past by people of Irish descent But nowadays the Irish population often speaks English.This makes it only a small number of the native Irish speaking population. A 2016 survey found that there are only 73,800 native Irish speakers in Ireland, or less than 2 percent of the population. While most Irish people will learn Irish as a second language. Irish, however, is the official language in Ireland. Set by the Irish Constitution It is also the official language of the European Union and in the UK 's Northern Ireland .