Zardnaar
Legend
Weren't the 2e halflings in Dark Sun the original race? They didn't dominate the other races, they created them. Well maybe they created and then dominated them, I can't quite recall the lore for the dark sun halflings.
Yes the were the dominant race in the blue age.
They created the tower to kill some sort of tide iirc.
That ended the blue age. The Halflings mutated into the other races via the pristine tower they didn't create them as such.
Kreen were an exception but I don't think they were that sentient in the blue age and the ancestral memory is hazy.