The early history of the native Irish Church is shrouded in much obscurity. The best authorities are disposed to accept St. Patrick as the apostle of Ireland, the fifth century as the period of his labours, and Armagh as his chief seat. He was not a native of Ireland; so much seems certain. A more interesting, because a more clearly defined figure, is that of Columba or Columkille, who was born in Donegal in 521. The churches of Derry, Durrow, Kells, Swords, Raphoe, Tory Island, and Drumcliff, claim him as their founder; but it is as the apostle of North Britain that he is best known. He was religious from his youth, but a peculiarly serious tinge was given to his mind by a feeling of remorse for bloodshed which he had partly caused. He had surreptitiously transcribed a psalter belonging to another saint, who complained of this primitive infringement of copyright. A royal decision that 'to every cow belongs her calf' was given, and was followed by an appeal to arms. Exile was then imposed as a penance on Columba, whose act had been the original cause of offence. Such was long the received legend, but perhaps the exile was voluntary.[12] Whether his departure was a penance or the result of a vow, tradition says that he was bound never to see Ireland again, that he landed first on Oronsay, but found that Erin was visible from thence, and refused to rest until he had reached Iona. His supposed feelings are recorded in a very ancient poem:-- 'My vision o'er the brine I stretch From the ample oaken planks; Large is the tear of my soft grey eye When I look back upon Erin. Upon Erin my attention is fixed.' Columba was the Paul of Celtic Christianity. By him and his disciples a great part of Scotland was evangelised, and it was to him that the British Church looked as a founder when the time came to decide between the relative pretensions of the Celtic and the Norman type of religion. St. Bridget or Bride, who died four years after Columba's birth, is scarcely less celebrated. She was born near Dundalk, and her chief seat was at Kildare. She was the mother of Irish female monachism, and in popular estimation is not less famous than Patrick, and perhaps more so than Columba.[13] [Sidenote: The Irish Church was originally monastic.]