The Age of Mist is the first Age of the World and the furthest that history stretches back.
The Age
The world is new, civilization is flourishing, the races are cooperating with one another, and while magic is still feared and met with awe it is at least respected and accepted. Civilisation hasn't spread across the whole continent yet, many lands are unexplored, and there are untold monsters and horrors beyond the borders.
The Gods created the world an untold number of years ago, and sometime after that Humans, Elves and Ogres were created. Some years afterthat, goblins, hobgoblins, orcs, kobolds and other goblinoid demihumans were found by the Ogres in their mines. Dwarves, gnomes and halflings were created accidentally by the forger of the world as sparks off his anvil. Here and there more creatures were created one by one by the Gods for certain tasks. Some escaped and bred while others died out. Powerful magi summon beasts from other planes or meld creatures together in an attempt to create new life.
An untold number of years after creation, the Ogres, who were once intelligent and beautiful, if not still evil, conspired together to overthrow their creator, Malkis. Luring Malkis into the world, the Ogres turned on him, using their size, fine weapons and powerful magic. The Ogres failed, and as punishment for their treachery, Malkis cursed the race of Ogres, turning them from a beautiful and brilliant people into the ugly and stupid beasts they are now. Ogres have lost the ability to be wizards, but here and there are a few priests with magical powers.
These are the years of prehistory, record keeping only starting with the Ogre Wars; the first great war of the world, where Ogres, Orcs, Goblins, Kobolds and Hobgoblins marched together against the Humans, Elves and Dwarves. Without the experience of their history, these races underestimated their opponents and hardly put up a fight, until most of the Elves were annihilated. The Ogre Wars resulted in close record keeping and an alliance among Men, Elves and Dwarves as they banded together with the pact to defend one another.