Dragonborn, Legacies of a Birthright

In the time of the ancient civilization the dragonborn were known far and wide, as the most devout and honorable race of the time. The original dragonborn were known to be of an even older and more noble "Drakken" who are said to have ascended, by the grace of Rime, to a state of body and mind that closely resembled the original image of the Elder Dragons. These dragonborn excelled at all they did, becoming great heroes, community leaders, head of clergies and other research institutions of the Primordial Civilization of Auriga.
By the end of the Great Dragon War, most of the dragonborn had been wiped out with many of the Elder Dragonborn bloodlines going extinct with their Elder Dragon brethren. After the reemergence dragonborns, they began to claim power over the peninsula of Kharguk and form cities with well respected noble families that could trace their heritage back to the Primordial Civilization. New dragonborns that weren't born from these families were almost unheard of. It was a rare occasion when a person of any race proved themselves worthy to an Aspect of an Elder Dragon, and were granted the gift and glory as a reward, in most cases, some Elder Dragons are not one that a Dragonborn might be proud to represent themselves as.
Dragonborn of any age have a well-known dedication to honor, but how deeply rooted this trait remains debatable. However, all dragonborn tended to view all living things, even hated enemies, as deserving of courtesy and respect. To dragonborn, honor was more than a word and was often considered more important than life itself. Cowardice was not simply undesirable among dragonborn, it was considered outright repulsive. Part of the roots of this honorable attitude lay in the dragonborn's drive for self-improvement. The draconic nature of dragonborn gave them a strong self-consciousness and a tendency for strong emotions. Both of these combined to make dragonborn particularly wanting for the approval of others.
Dragonborn placed great value on the skill of an individual, including themselves. Failing at a task was anathema to dragonborn and as a result they could sometimes push themselves to unhealthy extremes of effort. This aspect of the dragonborn mind meant few of the race took a laid-back approach to any skill or ability, striving always to become the masters of a particular skill, and dragonborn respected those among other races who approached life in the same manner. As a result, most dragonborn adventurers came to their way of life through a desire to prove themselves and win respect from their brethren.
Long Winter:
The Longer Winter also had a great impact on dragonborn culture. To meet the demands of war the dragonborn swore servitude to a particularly cruel chromatic conclave of dragons. They were able to defend against the heavy onslaught of Elven and Human forces but the cost was deeper than what could be seen at the time.
As the war ended, the Elves came to the capital of Kharguk and by a masterful strategy orchestrated by the one who would become the Jade Emperor, bested the Chromatic Dragons and made a deal to free the dragonborn from their slavery. The dragonborn agree to serve with the elves, and swore a lifedebt to the elves. As long as Jade blood ruled this new dynasty, the dragonborn would reign as a dominant race again in Auriga and free from the chains of their draconic lords.
A divide in culture:
During the Chromatic Conclave's occupation of Kharguk, two castes of dragonborn developed. Those calling themselves the Drakkenblood, these achieved nobility on the Conclave's dominion, they viewed their heritage with pride. Using their skills in diplomacy to secure and keep their status even after joining the Jade Dynasty. Then there were the Nerevaren, these Dragonborn hated and rejected their heritage, they rebelled against the Conclave during the Long Winter and were treated harshly. There is bad blood that exists between these two classes of dragonborn. The Nerevaren view Drakkenbloods as betrayers and hypocrites that hide behind fake visages of honor and duty. The Drakkenblood see the Nerevaren as unappreciative and not considerate to the ancestors and the heritage of the species.
in a great exodus most Nerevaren fled to the Sekumea Deserts and became founders of the Great House Kirin. House Drakken and House Kirin are kept under strict watch of the Jade Emperor, their frequent fighting so close to the Dynasty's capital of Xurugan is strictly enforced by the Jade Emperor.