Speaking of cool history nerd things, here's another tidbit from a few years ago about the Viking Age.
https://www.youtube.com/watch?v=wbchlhlMLPE
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On a minor note, I learned recently that apparently I'm a direct-line descendant of King Ælla of Northumbria, the guy who pissed off the Great Heathen Army & got taken out by Ivar the Boneless.