Early Christian Ireland (The Cambridge History of Ireland)

This is the first fully-documented history of Ireland and the Irish from Saint Patrick to the Vikings. Other books cover either a longer period (up to the Anglo-Norman conquests) or do not indicate in detail the evidence on which they are based. The book opens with the Irish raids and settlements in Britain, and the conversion of Ireland to Christianity, and ends as Viking attacks on Ireland accelerated in the second quarter of the ninth century.