Caldoria was the first of the skyborn cities, dedicated in 2300/1/1. It contained Caldoria Heights Apartments, the Capitol Building in Sector 3 and the Caldoria University. It was connected with the rest of the world through the Global Transporter system.

Citizens are informed by the Caldoria Today and Caldoria Daily publications as well as the INN and WKIM networks.

In 2318, the Cyrollans arrived above the Caldoria Capitol building and invited Earth to enter the Symbiotry of Peaceful Beings.