Exodus: The Human Empire
The main human polity in the series is the New Terran Empire. As explained in the first book, the Exodus III traveled for one thousand years along our Galactic Arm and into the next one to put distance between themselves and the Ca'cadasan Empire. It was envisioned that a Democratic government much like the United Earth of the home system would be established on arrival, but the descendants of the original crew decided differently, and a Monarchy was established with crew as the original nobility. The humans established themselves in a Supersystem of seven star systems in orbit around a Black Hole. The system had been established by an Ancient Civilization known as, of course, the Ancients, though they had a name for themselves that was translated by the humans into the Elysium Empire, after the almost Godlike technologies of people who could move whole star systems to where they wanted them to be. Other races had been bootstrapped out of their primitive existences by the Ancients, making the region the home to more space faring species than any other in the Galaxy. The Ancients disappeared for reasons that will be revealed in the series, and what followed was a period of decline. The Supersystem was avoided by most of the species of the area who believe it is haunted by the spirits of the Ancients. The humans, without this superstition, settled in what looked like the perfect home, as each system had at least one habitable planet, and there were also numerous worlds in the proper orbits for Terraforming. Add to that seven star systems all within a day's travel of each other through the subspace drive the humans used at the time, and it seemed to be heaven. The humans quickly established themselves on the world that came to be known as Jewel, the Capital of the Empire.
Humanity swiftly increased its numbers, passing laws that encouraged childbirth and large families. The human race was sure a the time that eventually the old enemy would find them, and they wanted to become as strong as possible. The first Dictator, Chang Lee, ordered a massive research and development campaign meant to increase the survivability of the human race, and the Fleet was established in the fifth year of his reign. The humans solved many of the technologies of the Ca'cadasans garnered from equipment that had been taken in the few skirmishes that humanity had won. Some of this research was conducted on the journey, while more was accomplished with the establishment of dedicated research facilities in the Supersystem. Humanity cracked the secret of the Hyperspatial Dimensions that allowed them to travel the local region in a reasonable time frame. This allowed the human race to expand into nearby systems well before the planets of the Supersystem were populated to saturation level. More technology was gained from the exploration of ruins, planetary and space based, left behind by the Ancients.
Within a decade of establishment humanity faced its first test, in the form of a nearby race who saw the humans as an easy conquest. The human race barely won the war, and established a history of complete military dominance that would last a thousand years. The humans fought with an tenacity and ferocity that the alien races had never before seen. Humanity had already seen its Homeworld destroyed and its billions of inhabitants slaughtered. The race was determined that they would not be conquered or destroyed, and that they would be the masters of their own destinies. They fought to win, no matter the cost, and the Fleet, Marines and Army established the tradition of Victory at all Costs early on.
It was discovered in the early 22nd Century that immortality was a pipe dream. The human genome just didn't permit life beyond about three hundred years, much less in most cases. There did not seem to be a scientific explanation for this. It was also discovered that children born of cloning or in artificial wombs did not develop as other children. They all turned out to be psychopaths, people without consciences. This brought about a revival on Philosophy and Religion. There seemed to be something at work that could not be explained, could not be measured, and most people believed it was the Soul. So Religion, a rational variety for the most part that believed in what science told it about the Universe, was growing at the time of the Exodus, and became an important part of human life and culture. Cloning and birth by artificial womb was also outlawed, as the products of these systems were natural born psychopaths of no use to society. So the age old process of human birth continued. There were many areas of the human genome that did permit engineering and improvement. Humans were engineered in the womb to be stronger, smarter and quicker than past generations. They lived longer and had better immune and healing systems. The integration of nanotech into the human body, passed from mother to child, led to further improvements. Humans still obeyed to old bell curve, only the average person was much better than the old average. And supermen were possible as well, but there were problems incurrent in making people that much better than average. People with truly superior strength, speed or intelligence also tended to live much shorter lives than the rest, something that most people were not willing to trade off. Only a few genetic lines, notably that of some of the noble families, was responsive to radical improvement without the downside, and still some members of those families died well before their time.
The Milky Way Galaxy
The New Terran Empire