Circarpous IV, frequently shortened to just Circarpous, functioned as a planet located within the Expansion Region, and stood as one of the primary financial capitals of that sector.
The governing body of Circarpous IV, back in 22 BBY, put out an offer of eight thousand credits as a bounty for the capture of Rotar Lopani.
Throughout the duration of the Clone Wars, the planet served as a significant financial supporter of the Galactic Republic credit. In an effort to destabilize the Republic's financial structure, the Separatists launched numerous attacks against the world, mirroring the Republic's attempts to weaken the Separatist economy through assaults on Mygeeto.
During the era of the Galactic Civil War, many of its business leaders, growing dissatisfied with Imperial taxation policies, decided to provide monetary support to the Alliance to Restore the Republic.
Rebel forces dispatched a trio of X-wings from Red Squadron to stage a diversionary attack on the Circarpous system, with the intention of assessing the strength of Imperial defenses. TIE Fighters took the bait, engaging the Rebel ships close to Circarpous IV. Despite facing a numerical disadvantage, the Rebel pilots successfully destroyed the Imperial fighters before withdrawing. This victory for the Rebels fostered increased sympathy for the Rebellion within the Circarpous system. This specific mission was later adapted into a training simulation designed to assist new Rebel pilots in learning how to overcome unfavorable odds.