Irish
Irish has the constitutional status as the official language of the Republic of Ireland, and it is also officially recognized as a minority language in Northern Ireland of UK. It is also one of the 24 official languages of European Union.
Irish is one of the few living Giodelic languages, of the Celtic language family. It is from Ireland and spoken by people throughout the country.
Irish is not currently taught at IU but we have some recording in our archive.
You could find further languge knowledge in wikipedia.
Old Irish
Old Irish, sometimes known as Old Gaelic, is a Celtic language that was used from about 600 - 900 CE. It is known today from written texts such as the Cambrai Homily, The Book of Armagh, and glosses in the margins and between the lines of Latin manuscripts. In addition, there are later texts for which Old Irish originals can be inferred, because they contain linguistic features that were common in Old Irish but much less common afterward.
Learn more about Old Irish on Wikipedia. Find free online study materials here.