Deva

The Devas were the guiding light of the Divine Empire.  While the gods provide most religious races with visions or omens, they spoke directly to the Devas, and through them guided the Divine Empire to prosperity.  Devas were ageless, and were said to remember events up to the creation of the world... however dwarves and goliaths agree that Devas did not exists before the Divine Empire.  But everyone in the known world knows that Devas were what made the golden age of the Divine Empire possible.

And that they all vanished.

Devas would be a minor race, save that everyone knows of them by reputation, despite almost nobody having seen a Deva in nearly 200 years.  Dwarves despise the Devas, believing that it was through some plan of theirs that the ancient world was swept under the sea.  Tieflings, and to a lesser degree all the minor races, view Devas with religious awe, but feel betrayed by their sudden disappearance.  Dragonborn respect the Devas for their deeds, but feel that the Divine Empire was inherently misguided, and the disappearance of the Devas is an example of that failing.

Today, most races wouldn't recognize a Deva, and wouldn't believe that a Deva is actually a Deva.  After all, they no longer exist.

For Deva PCs:
Stats are as written, save that devas get a +5 bonus on any check made to convince people that they are not, in fact, a deva.  Please discuss with DM before deciding on a Deva PC.  You will also need a cover-race, and a considerable amount of hidden background.  Might be complicated.  Don't know if I want a Deva among the PCs anyway.