Landnám Íslands / Icelandic settlement

Í þann tíð var Ísland viði vaxit milli fjalls ok fjöru. Þá váru hér menn kristnir, þeir er Norðmenn kalla Papa, en þeir fóru síðan á braut, af því at þeir vildu eigi vera hér við heiðna menn, ok létu eftir bækr írskar ok bjöllur ok bagla. Af því mátti skilja, at þeir váru menn írskir.

In those days Iceland stood forest-clad, wood growing from mountain slopes down to the sea’s edge. Here dwelt Christian men, whom the Norse call Papar.But they departed afterward, or they would not remain among heathen folk.They left behind Irish books, and bells and their staffs—and thus it was understood that these men were of Irish kind.

Book of Icelanders-Ari the Learned.