You say everything that is was just renamed, yet why are there none that still speak those native languages? Such as Sindarin, they were invented by Tolkien. I do believe in reincarnation, and perhaps our inspirations are influenced from outside of the lives we live. Those places existed before Tolkien ever wrote his story, but there are no clear connexions. To me the words and tongues of those peoples would be evidence, for that was the base of his works.