The dome was built by Volsinii for one thousand twenty-two years ago, while their planet went through a chemical disaster that built them dome survive in. Volsinii placed several virtual reality pod to be able to survive and wait for their planet recovered itself. In 1998 to left Volsinii dome and began to populate their planet all over again. (RPG: "Friends and Foes: Stargate Season Two") (SG1: "The Gamekeeper")