It's not like Tolkien tried to hide it at all or the serious folks looking into him didn't make that obvious...And this is it, right here. Both were inspired by the same Nordic folklore. Which just goes to show just how much Tolkien was taking from existing folklore, and yet some people get really riled up at any mention of Tolkien copying from others. Kinda weird. Feels almost like some folks have deified him to a point where Tolkien's creative genius was so great he created everything, including fantasy. He was a genius, but he did copy a lot.