Board Thread:General Mod Discussion/@comment-32863419-20171125095850/@comment-31507215-20171127025919

Gollum was a hobbit. He lived somewhere near the Gladden Fields, sometime after Isildur was killed. I think you can read some stuff about him in The Lord of the Rings, sometime during the Council of Elrond.

I know those answers are really vague, but hopefully they help a bit.