History of Ireland (400–795)
The period includes the Hiberno-Scottish mission of Christianised Ireland to regions of pagan Great Britain and the spread of Irish cultural influence to Continental Europe.[1] Early Christian Ireland began after the country emerged from a mysterious decline in population and standards of living that archaeological evidence suggests lasted from c. 100 to 300 AD.During this period, called the Irish Dark Age by Thomas Charles-Edwards, the population was entirely rural and dispersed, with small ringforts the largest centres of human occupation.Otherwise, kings lived in ringforts larger than the norm, but generally similar; however the possession of luxury objects such as elaborate Celtic brooches was much greater among royalty.By the early 6th century the church had developed separate dioceses, with bishops as the most senior ecclesiastical figures, but the country was still predominantly pagan.The monastic movement, headed by abbots, took hold in the mid 6th century, and by 700 Ireland was at least nominally a Christian country, with the church fully part of Irish society.