Vápnthjófr saga

The birch bark parchment returns!

The golden age of science was going on in the middle east while this takes place, and as I mentioned earlier, the vikings had a lot of contact with the middle east. The middle eastern science of medicine in the 7th to 9th century were likely informed from Byzantine sources. Byzantine scientists where those who came up with the theory of the four humors and their effects on health, and the text she writes is about that.

…Sometimes I ask myself if it is worth it to spend so much research effort on uninportant background details, lmao