Sometime in the 23rd century, an unexpected water leak forced the Vault dwellers to open in hopes of trading with the outside. Ī control Vault that stayed closed due to the wishes of its inhabitants. In 2162, it was destroyed in a nuclear explosion. In 2155, it was taken over as the Unity's headquarters by the Master. Although fully functional, it was not part of any experiment and thus its inhabitants survived the Great War unscathed. Constructed as a demonstration/proof of concept Vault for the United States government.
