Snorri Sturluson,
Heimskringla — Saga of Olaf Herladson…
“ Einar answers, "I have said so little about the matter because nobody has asked me about it; but if I may give my opinion, our countrymen might just as well make themselves at once liable to land-scat to King Olaf, and submit to all his exactions as he has them among his people in Norway; and this heavy burden we will lay not only upon ourselves, but on our sons, and their sons, and all our race, and on all the community dwelling and living in this land, which never after will be free from this slavery. ”
