Oral dwarven history begins here, as does the enmity between them and the giants.
Elven history begins here as well.
Vast lands were dominated by them. Dwarven refugees come to Mordorrak from many settlements ravaged by giants and dragons. Eventually, the giant and dragon spheres overlapped and they started fighting. The fighting went on until there weren't enough of either side left to continue fighting. With the death of nearly all dragons and the downfall of the giant's civilization, demi-humans entered into a golden age, and elves and dwarves spread through the land.