Dragonborn

the dragonborn are a race without a home. Valuing personal honor and self-sufficiency over all else, the dragonborn have often tried to carve out a place for themselves in the world, but unfortunately for them, prejudice runs deep. Nearby human neighbors could never accept "armies of dragon men" amassing on their borders, and ultimately, any attempt at a dragonborn kingdom was always destroyed (at least in Archaios). To that end, most dragonborn families opted to travel the continent as roaming nomads, following signs and omens set forth in the stars by Bahamet and Tiamat and the migratory patterns of the big game they hunt for sustenance.
As honor is chief among dragonborn philosophy, politics between the various tribes can get complicated. When the clans cross paths and convene, they almost always leave with either a new arranged marriage, trade agreement, defensive pact, or blood feud. In regards to the latter, developing a stronger new generation is a big priority for the dragonborn, and distilling good genes and "selective breeding" is a common occurrence.
Little is known of their origins, but many scholars point to a great resurgence of dragon attacks in the 3rd Millennium AC as the first recorded instances of draconic humanoids. How they came to be remains a mystery.