Calamar was the capital city of Esseles. The planet's pleasant climate and rich history conspired to make Calamar a center of high culture, and its suburbs were dominated by vast parks, art centers, holo-production companies, and places of higher learning such as the Darpa Center of History at Calamar. The Hall of Esseles was the government headquarters, located within the city. A large cell of the Rebel Alliance was based out of the entertainment district.