According to Tertullian, the Christian faith had penetrated into parts of Britain inaccessible to the Roman arms. About a century afterwards, Ossian, the son of Fingal, is said to have disputed, in his extreme old age, with one of the foreign missionaries, and the dispute is still extant in verse, and in the Erse language. See Mr. Macpherson's Dissertation on the Antiquity of Ossian's Poems, p. 10.