Originally, it was settled by Aryan racial homogenists from Earth, before becoming a constitutional democracy. Its climate was similar to Earth's.
It was conquered by force some time prior to the First Havenite-Manticoran War. Its capital was New Prague, a hub of transport and commerce. John Mullins and Charles Gonzalvez of the Office of Naval Intelligence unwillingly assisted the defection of Admiral Mládek while "vacationing" there. (HHA4.4: LGTP)