City Readers Digital Historic Collections at the New York Society Library

The Royal Irish Academy (RIA; Irish: Acadamh Ríoga na hÉireann), based in Dublin, is an all-Ireland, independent academic body that promotes study and excellence in the sciences, humanities and social sciences. It is one of Ireland's premier learned societies and cultural institutions, and currently has around 501 members including Honorary Members, elected in recognition of their academic achievements. The Academy was established in 1785 and granted a royal charter in 1786.

Until the late 19th century the Royal Irish Academy was also the owner of the main national collection of Irish antiquities. It presented its collection of archaeological artefacts and similar items, which included such famous pieces as the Tara Brooch, the Cross of Cong and the Ardagh Chalice to what is now the National Museum of Ireland, but retains its very significant collection of manuscripts including the famous Cathach of Colmcille, the Book of the Dun Cow (c. 1100), the later medieval Leabhar Breac, the Book of Ballymote, and the Annals of the Four Masters.