"Is the Kensington Rune Stone an authentic relic of European travel in the New World over a century before Columbus sailed on his voyages of discovery? Evidence of pre-Columbian European travel in North America has been unearthed in Vinland, Northeastern Minnesota."
I didn't read this whole book, but I did skim a lot of it. I hit all the parts that really appealed to me, including the first and last chapters (I figured they'd summarize it pretty well), and the one about the plague. While I really like medieval history, I'm not so into American history, so I didn't mind skipping the part about the native Americans. I was interested in the journey over from Northern Europe, so I read those chapters too.
I hadn't really thought about the fact that the Black Plague (or, as this author contends, the RED plague, since there was a lot of....blood leakage from...places) affected Northern Europe too, but apparently it was a big deal there. There was some interesting discussion of it impact on the Nordic countries, how it traveled, and also how it might have traveled to and struck North American and the people there.