Recorded Irish history begins
1. With the introduction of Christianity and Latin culture in the 5th century
2. In 431, Pope Celestine I sent Palladius as the 1st bishop of the Irish Christians, and also sent Patrick to preach Christianity
3. Christianity became popular in Ireland, Latin too
4. Kings of Ireland are said to be Christians around the midst of the 6th century
5. The monastic movement, headed by abbots, began at the same time and experienced great success in Ireland