There's the sheer distance factor.Looking at a map,the two islands are not far away,but Iceland is a lot younger then Pangea(when earth was a single continent) and there never was any land connecting it to Greenland at any point at any time,So they could never have naturally drifted over there. read more
Atli nailed it really. i'd simply add one thing: Inuits probably never settled Iceland because there already were lotssa Icelanders there. If the land had been empty, there probably would have been some kind of an Inuit settlement at some point in time, but even in that case, they would have had to change their culture quite a lot in order to make it in a relatively warmer climate. read more
As always, settled there because it was the area where they were most adapted for life. The land is very abundant, if you know what to do and where to look. Just as an FYI, if I was ever in a survival situation, I would head north until I reached the treeline. That would let me avoid the single most risky predator: Humans. read more
Yes, there were people before the Norse (the Norse arrived before the Inuit, IIRC). But the Norse were the first to settle the places that were remotely like Iceland. There was just no incentive for these people to settle these more temperate lands, even when they knew about them. read more