The Landnámabók (The Icelandic Book of Settlements), possibly dating from the 11th century in its original form, clearly states on page one that Irish monks had been living on Iceland before the arrival of Norse settlers.
Landnámabók (bogen om landnam), stammer muligvis fra det 11. århundrede i sin oprindelige form, det står tydeligt på side et, at irske munke havde boet på Island, før nordboerne ankom.