Comment by vintermann

> The Norse were farmers, they needed farmland and a little bit of forest for wood and hunting. The Sami were reindeer herders, they needed tundra.

This is a common stereotype, but it's simply not accurate. Intensive reindeer herding didn't become a thing until the major predators and the wild reindeer were wiped out. Sami lived very similarly to the Norse - a bit more semi-nomadic, and a bit more adapted to use marginal land maybe, but they held sheep, fished and farmed just like their neighbors. And once intensive reindeer herding took off in the 17th-18th century, still it was a minority who lived from that.