Related: [Sauron, Gollum, and the Ring](https://scifi.stackexchange.com/questions/47067/sauron-gollum-and-the-ring)

I've always found it interesting that Gollum possessed the One Ring for approximately five hundred years without Sauron sniffing it out; it seems actual talk of the One Ring was extremely minimal, something that only a few might dare speak of behind closed doors in the dead of night or something. 

**Once the ring passed to Bilbo, did others begin to learn about Gollum and that he was a ringbearer?** (I realize Bilbo and Gandalf came to know this information). Did the entire Fellowship know Gollum had been a ringbearer, or just a select few in the group? Did anyone outside the Fellowship come to find out?