The one ring was destoryed? If you're looking for something smaller, Frodo lost a finger?

no to both you and Firefoot

The Ring got its second master; Gollum died.

The Ring was forged.

What about my guess?

Or maybe it's the forging of the ring.

no one got it right yet

Frodo losing a finger?

nope

maybe a hint???

Um...how about...Isildur refused to destory the One ring after being told by Elrond to do so?

Gollum died?

The Nazgul perished?

no to all so far

hint:think obscure

Sauron discovered the peril he was in?

Sam had a vision of Sauron's empire crumbling.

nyet (russian for no)

The great burden was lifted from Frodo?

The Ring was forged?

Gollum and Frodo fought for the Ring?

Obscure, obscure, obscure.....
Following the Downfall of Numenor, the Exiles in Middle Earth realised that Sauron had also escaped by seeing the smoke rising from Mount Doom? (Clumsily worded, but you can hopefully guess what I mean. ;))
Or, simply, Sauron fled there to rebuild his power? (Though I s'pose that's all of Mordor.....hmmm.....)

no!more obscure people! your to down to earth!

Well, could you please give another hint?

no...another hint would give it away

Obscure? You want obscure? Well, here you go.
Gollum became hero of ME by destroying the One Ring.
Is that obscure enough?

Thousands of Orcs laboured to clean the road to Barad-dûr?
 

Can't get more down to earth than that. ;)

Can you atleast tell us what you mean by obscure? Or tell us who is close?

Gollum's very last wail of Precious was heard there.

no one is close...it has nothing to do with Gollum ya'll!

One of teh only volcanos in ME stated..so i'll try to base my anwsers around that....Nazgul died near that place?

How about this:

Sam and Frodo almost died.

Frodo became the Lord of the Rings....even if for a short period of time?

There burned the only fire in ME hot enough to destroy the Ring.

Eru intervened and caused the Ring to be destroyed.

(Though maybe that has something to do with Gollum)

Samwise got to see Mt. Doom from the interior?

This is really difficult. Is it something mentioned in the books or is it something thats totally unrelated?

no one's on the right track at all yet

I think you need to give a bigger hint.

Is it in LotR or appendices? That is a hint you could give that shouldn't "give it away" as you said.

LOTR