Point of order! Tolkien is Kalevala-esque!
He cribbed much of his writings off it. He was a big fan of all the Scandinavian traditional stuff and freely borrowed from them all of course.
He found the lack of a similar British set of stories bothersome which is why he ended up inventing something himself to fill the gap.
Don't forget his "companion book to" the map. "Historia de Gentibus Septentrionalibus"
https://en.wikipedia.org/wiki/A_Desc...rthern_Peoples