Firstly: I've skipped most of what's been written since my last post as I just don't have the time for long posts atm, as I've explained in other threads when prodded for a post.
I'm also not sure exactly how much more we can really narrow things down geographically, as the sagas also to some extent are works of fiction - some more than others, and I don't know how much fiction are in the two about Vinland. But even if there's not much fiction, then I'm still not sure we can really narrow it that further down.
But yeah, reason I've not posted until now was plain and simply lack of time for a proper post, plus I just can't easily navigate long posts on my phone and I use the fora on my phone almost exclusively atm.
I've not stopped pondering the topic, though, and have been trying to look at various sources and avenues open to me, including visiting some museums with high quality viking parts. And I have learnt some stuff that might be helpful.
Also, I've tried to investigate what the thing about the Sun being on the sky at dagmål and øgt means, but it seems there's no consensus at all, and that there's a good chance nobody actually knows exactly how the vikings kept time. it's possible that it just is noting that the Sun was on the sky at those times, as opposed to further north where it'd not be visible. Or it could be when it was rising. Thinking about it more myself, based on some talks, etc. as well then I think I myself now slant towards it just meaning it was visible as opposed to further north. Meaning that it'd only be usable for a limit for how far north it could be.
Vinland = Wine land because there were grapes? Did the vikings make wine? Their home seems too cold for it.
I don't know about the other Norse areas, but in Denmark grapes were grown and wine made at least around Tissø. Albeit, don't know if it was grown and made elsewhre. The national museum mentioned them being grown and made at Tissø, though, so that must have happened. That's also around where you have one of the biggest seats of power in Denmark at teh time, so if it was gonna happen it'd likely be someplace like there.
In any case, it was a high luxury, and growing it also wasn't something you just could do as a farmer, so even in the Danish parts of the Norse area it was a rarity, but did happen. And the vikings from all areas knew about wine in any case.
I'm going to guess that wine from grapes wasn't a normal thing made in Norway, Iceland, or Sweden, and the main homeland for the Vinland explorers was Norway-Iceland. But there was enough contact with Germany and places farther south for them to know about actual grapes.
Wine was a luxury. Normal drinking was (clean) water, beer, and mead. And probably primarily the latter two, if the viking age was similar to the later ages in Scandinavia on that front, as getting clean water was super hard. That's why you in the early modern era had light beer that was almost not alcoholic and which even children drank, and I'd not at all be surprised if you had similar back then, but I don't know.
More likely, name it after something in abundance there (Iceland) or maybe
Iceland doesn'ty actually have an abundance of ice neither now nor back then. Rather it has one area with lots of ice, and that was the area that by chance was reached first and the land was named after that as a result. Had any other part of the land been reached first then it'd have had a different name.
Also, Greenland actually was pretty lush back then, so I'm not sure it was that much of a marketing stunt, and in any case, the theory of peopl emore or less being rused into going to Greenland by promises not holding isn't considered credible anymore.
And now, I wonder if more Scandinavians might have settled in the new world if they hadn't been burned by not-so-Greenland.
They weren't burnt by Greenland. In fact Greenland thrived for one reason, and one reason only: Walrus tusks. They were extremely sought after in Scandinavia (and from what I understood Europe in general) and hence it was super profitable to hunt for them.
That's why they did repeated trips north to around Disko, 1000 km north of their settlements, to hunt for walruses for their tusks which were sold to Europe. That's what made Greenland worth colonising. The land wasn't bad, but it also wasn't exceptional, and it's not like there was an outright lack of land elsewhere.
When Europe stopped demanding tusks around the 1300s/1400s that's also when the Greenlandic colony 1) stopped going far north (and hence also likely stopped going to Vinland) and 2) started declining.
The decline seems to not be as much due to the onset of the little ice age as opposed to people plain and simply migrating away as there just wasn't as much money in the area anymore. And when you have a small colony of something like 5-6k people, IIRC, then you don't need that many people to leave before you can't sustain the losses. Similarly, it's known that there were battles with the Inuits, and that the Inuits massacred large amounts of Norse. At the population sizes, then that also starts not being something you really can come back from fast.
So those 160 people in Eric the Red's Saga represent about 25% of Greenland's population. That's a huge percentage, so high that I rather suspect the saga is off. I don't know if the original text says all 160 were in the same 3 boats with the cattle, or that there were more ships but 3 specifically carried cattle; maybe @Wagonlitz can clarify? In any case, it doesn't change much if we do take these figures for the settling of Greenland, it raises the total number to 14 x 50 or ca. 700 people. 160 would still be about 20% of Greenland's population.
Later on at it's height there was 5-6k, IIRC. No idea how many were tehre initially, but initially I don't think it mattered as much as things were still being settled, tusks were extremely valuable, and hence there was a constant influx of people. So a high percentage setting off needn't be a problem, I think.
3 ships for 160 people isn't impossible. I don't know how many people would fit into an average longship, but the biggest, extant one could seat 100, albeit that one was probably quite larger than most other ships and a royal ship. But 53 people per longship, as you'd need for 160 in three, definitely does sound doable without requiring longships so long that it seems unreasonable for them to have been available. I don't know how carrying cattle, etc. factored in with regard to space, and you'd obviously need more ships when also carrying that.