The first reliable historical event in Irish history, recorded in the Chronicle of Prosper of Aquitaine, is the ordination by Pope Celestine I of Palladius as the first bishop to Irish Christians in 431. This demonstrates that there were Christians living in Ireland, before Palladius or Patrick. Prosper says in his Contra Collatorem that by this act Celestine "made the barbarian island Christian", although it is clear the Christianisation of Ireland was a longer and more gradual process. According to Legend, Saint Palladius landed in Palladius landed at Hy-Garchon, where the town of Wicklow now stands.
