The New California Republic (NCR) of the Fallout series is significant, with 140 years of history and being the biggest nation to rise since the Great War. The NCR is all about old-world values like liberty, law, and democracy and their flag is directly inspired by the state flag of California. Those that throw their lot with the NCR typically get luxuries others in the wasteland do not, such as healthcare, rules, protection, government, and a stable economy.
Such a powerful stabilizing force in the wasteland was not made in a day. The birth of the NCR began with a vault, Vault 15. It opened 20 years after the Great War and while some occupants split off into raider tribes which would later become the Khans, Vipers, and Jackals, those that remained would begin to form the NCR. From there, it grew into a huge nation and later set its eyes on expansionism.
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Like all other vaults, Vault 15 had a secret agenda to experiment on human behavior. Luckily for Vault 15, the experiment was rather merciful in comparison to others. Only individuals of radically diverse cultures and ideologies were placed in the vault, and it was planned to gather data on their interactions due to their differences. When the vault opened, the population made various distinct communities. The one that would eventually become the NCR used Vault 15's GECK to create the self-sufficient village of Shady Sands.
By 2161, the village got to grow its own crops and have a brahmin herd. At the time, they tried to stay isolated but Khan raiders and radscorpions kept attacking them. These issues were fixed by the Vault Dweller, and one hundred years later Shady Sands was no longer
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