The Church of the Holy Green
Many centuries ago, mankind was laid low by a terrible calamity. After years of scrapping by just to survive, the Green Mothers fell from heaven. A verdant bounty of new life grew from out of the relics, and humanity was able to fight back from the verge of extinction.
As people strove to protect the Greens and the Holy Relics, a new religion gradually grew to power. While originally small and centered around a few radical priests, it eventually gathered more and more support from the general public. As the Church grew larger and more powerful, it began to exercise control over more and more territories. Today, the Church is heavily involved in the day-to-day lives of almost every resident of every green.