Location:
At the region around Greenville Mississippi, including part of the river.

Structure:
A Vault City esque large fenced settlement. An underground vault (what ever unused number) from where the inhabitants emerged; a large facility consisting of The Greenhous Genetics laboratories, The Greenhouse Institute and The Greenhouse Testfacility; normal settlement area divided into "the slum" with lower grade infrastructure, "the central area" with higher grade infrastructure, and "the Institute area" with the science facilities and top tier inhabitants.

Politics:
- Non-expansive in a military way, but spreads influence through other means (very high medical knowhow, clean genetically enhanced food and water etc.) some of which may not be too ethical (like secretly creating circumstances which need their expertise to be solved).
- Strict policies about hygiene and diseasecontrol -- the Slum area basically being a quarantine zone for outsiders wanting to move in (though, despite being an inhospitable host, still offering some benefits over living outside as well as the ultimate benefit of the possibility of getting to live in the central area).
- Military force concentrated on defending the city and surrounding areas, not too capable of attacking anyone.

History:
The Greenhouse was originated in the 60's by a Polish immigrant, a young medical student named Victor Zielinsky, who, with his wife Katja, left the ruins and rebuilding of Krakow in late 40's to seek for a better life in America. He continued his medical studies in New Orleans and funded his living and studies by working parttime at a local florist and some local farms. From these occupations he contacted the interest in plant and animal life, and eventually moved away from medical studies to genetics.

In 1965, due to not being satisfied with the life in a big city, he moved to Greenville Mississippi with his wife and 6-year-old son and started a greenhouse project with a goal to enhance the livestock and crops to produce more and more nutrientwealthy products, and to "create" decorative plants by mixing various species'. The start was a rockyone and he still had to have another occupation as a local doctor and a vet. But as years passed, the greenhouse project started to bear fruit. In 1976 he made a significant breakthrough in the area of animal genetics and was able to expand. In following years the Greenhouse Project turned into a fullblown sciencefacility called The Greenhouse Genetics. Victors son, Adam Zielinsky, had taken an interest in his fathers study already at a young age, and eventually took over the project in early 1980's when Victor died of lung cancer.

Adam, being passionate about his work, changed his last name to Green to connect better with the work he was doing, and to sound more "American". He continued evolving the project, and expanded further by establishing The Greenhouse Institute at the side of The Greenhouse Genetics facility. The Institute worked as a university of genetics and schooled people to work at the Genetics facility.

Adams passion to his work was such a powerful kind that it drove him to force the same passion to his daughter, Sylvia. Due to the strong belief in family ties and inheritance, he effectively brainwashed her to continue his legacy at the helm of the project. This line of action was then rooted to the Zielinsky/Green family as Sylvia passed it on to her child, and the chain went on from there.

Eventually the Greenhouse grew to be a national interest. The government had high interest in it and what it was doing, and at later point Vault Tec built a vault right next to the facility as part of the Project Safehouse. Pacts were made in secret and Reginald Green, the head of The Greenhouse Genetics at that point, was set as the overseer of the vault, which, like the other vaults, was sealed at 2077.

The overseers orders consisted of continuing the Greenhouse work, and doing medical experiments with the inhabitants in research of enhancing the human body. An accident was staged with the air- and waterfiltration systems and it was said that due to this, a form of plague had gotten in the vault. There was no permanent cure for this so the medical team started giving vaccines to people on regular basis. Most had a placebo, but some were intentionally contacted with various gene experiments. These experiments all led to deformation and horrible sickness, which of course was not the intent, but the eggs had to be broken for the omelet. This went on for years and the coverup held.

The vault doors finally opened at 2251 and the people emerged. With the aid of the vaults GECK, they formed a settlement around the vault entrance and the Greenhouse facility which they started repairing in working condition, as per ordered in the overseers instructions. It didn't take much time due to no direct hits of the warheads. The vault generators and the facilities own underground generators produced enough power to keep the settlement running and allowing it to expand a bit.

The young overseer, Victor Green (named after his ancestor), was appointed mayor and head geneologist. He restarted the Project Greenhouse which was to make the surrounding wasteland to flourish again, to produce wealth and health as it used to.

The neighboring settlements in the area took interest in The Greenhouse and commercial routes were established. Some people wanted to move in behind the protective walls and prosper with the advanced medical and agricultural prospects the Greenhouse offered, but due to Victors demands on high end diseasecontrol, they were packed in a fenced slumareas which eventually grew to form a full district. The Slum district occupants were regularly tested with various chemicals to assure they posed no significant threat of contaminating the central populace. The procedure was slow due to only few officials taking part in it which led only a handfull of people being tested at a time and for many times during a lengthy period of time. The district was full of people waiting to get tested, so new people were only let in the slum when others left or were let in the central district. The choosing of people to be tested was seemingly random and this led to some people living their whole lives in the slum waiting be tested.

It was not long after the facility got restarted when the first ghouls were met. At first they were shunned and driven away due to their appearance, but when it was learned that they had an abnormally long life, some were let inside, allowed to get past the line. And they were studied. Victor got immensely curious about their genetical structure and how it allowed them to live so long. With his most trusted scientists, he immediately started a behind the curtains project to create a vaccine which would give normal human the benefits of long and diseasefree life without the side-effects of rotting skin.

This was at first done in a civil manner, but when Victor learned he had cancer, he hasted the research. Soon the it consisted of cruel and inhuman practices. The testsubject were predisposed to enjailmet and torture, they were injected with substances that caused various diseases and deformations, they were cut to pieces to study their bodies' reactions to the chemicals. Victor justified all this with the, as he was sure of them, eventually succesful results and necessary evil in the betterment of human physiology which would, as he believed, eventually lead to the end of the wasteland and rapidly bring societies together again forming a better world.

He was was aware of how this would look in public, so extreme discretion was taken and all research was kept under a blanket. He also knew harvesting test subjects from the populace of his own city would eventually lead to lowering in popularity and desertion. So he, with his high security officials, staged diseases they knew how to cure in the other nearby settlements and then offered them medical assistance. They cured most for the show and kept others with the excuse of them being in such a bad shape they had to be quarantined, cremated or got disposed of by other means.

The growing efforts, however, spent more subjects than they could gather. Additional measures were taken and they started abducting people. They left clues in the wildersness which led to an assumption that the abductees were either killed and eaten by wildlife or cannibal savages, or captured by slavers. All this eventually rose suspicion among the other settlements, and a group of people started their private investigations to prove that the Greenhouse was in some way responsible for the ever growing number of missing people.

And this is the state the region is in right now in the year 2283, when a hasty stagíng of a form of smallpox got out of hand and spread throughout the region.