Board Thread:Online Discussion/@comment-207.166.242.52-20131029182300/@comment-2607:FCC8:9E47:9300:D1B0:9D70:53E7:8CE9-20190531180104

So went back into the lore. Forgotten Realms says they aren't even originally from the Forgotten Realms. They are from a parallel world. There is the Forgotten Realms that was given to the gods, and their twin world that was given to the Primordials. The dragonborn are from this Primordials Forgotten Realms. An entire nation of dragonborn was suddenly transported between the worlds durring the spell plauge. They are actually a slave race to dragons in the Primordial Forgotten Realms.

Supposedly, they hate ALL dragons, metallic or chromatic.