Early and medieval literature
The earliest Irish literature consisted of original lyric poetry and versions of ancient prose tales. The earliest poetry, composed in the 6th century, illustrates a vivid religious faith or describe the world of nature, and was sometimes written in the margins of illuminated manuscripts. Unusually among European epic cycles, the Irish sagas (such as Táin Bó Cúailnge) were written in prose, with verse interpolations expressing heightened emotion. Although usually found in recensions of the later medieval period, these works are linguistically archaic, and thus throw light on pre-Christian Ireland.
After the Old Irish period, there is a vast range of poetry from medieval and Renaissance times. By degrees the Irish created a classical tradition in their own language, though they continued to use Latin. Verse remained the main vehicle of literary expression, and by the 12th century questions of form and style had been essentially settled, with little change until the 17th century.
The literary language (known in English as Classical Irish), was a sophisticated medium with elaborate verse forms, and was taught in bardic schools (i.e. academies of higher learning) both in Ireland and Scotland. These produced historians, lawyers and a professional literary class which depended on the aristocracy for patronage. Much of the writing produced in this period was conventional in character, in praise of patrons and their families, but the best of it was of exceptionally high quality and included poetry of a personal nature. Gofraidh Fionn Ó Dálaigh (14th century), Tadhg Óg Ó Huiginn (15th century) and Eochaidh Ó Heóghusa (16th century) were among the most distinguished of these poets. Every noble family possessed a body of manuscripts containing genealogical and other material, and the work of the best poets was used for teaching purposes in the bardic schools. In this hierarchical society, fully trained poets belonged to