[greyhavener]

This is more a question than a reply. Did Tolkien create Frodo's lineage, the ancient history of Middle Earth, etc. before or after he wrote the LOTR? There are some incredible reponses here and I'm ruminating on them still. I tend to think the Frodo's shine has to do with his nature and that very nature is why he was chosen to bear the ring. Whether that nature is a result of his lineage, his association with the elves, a combination, or something more is like trying to understand how anyone becomes who he or she is. I love all of your speculation and think there are valid observations all around. Thanks for making me think.