Corpus of Electronic Texts Edition
The Irish ordeals, Cormac's adventure in the Land of Promise, and the decision as to Cormac's sword (Author: Unknown)

section 57

A famous deed was also done by Cormac then, namely, the compilation of the Saltair Cormaic. The old men and the historians of the men of Ireland, including Fintan son of Bochra and Fithel the Poet, were gathered together; and (then) the synchronisms and the pedigrees were recorded in writing, and the careers of their kings and princes, and their battles and contests, and their antiquities, from the beginning of the world down to that time. Wherefore this, the Psalter of Tara, is a root and a foundation and a source for Erin's historians from thence to the present day.