Cularin existed as a celestial body within the Cularin system, found inside both the Expansion Region and the Slice. Its position was noted as P-14 on the Standard Galactic Grid. A battle took place involving Cularin sometime between 22 BBY and 19 BBY; the Galactic Republic and the Jedi Order participated.
Regarding Star Wars canon as it stands, Cularin's initial appearance occurred in the fifty-second issue of the Star Wars: Build the Millennium Falcon magazine collection. De Agostini released this issue around December 30, 2015. In the Star Wars Legends timeline, the planet named Cularin was initially seen in the roleplaying game adventure called A Cularin Presence. This adventure served as the first part of the Eye of the Sun trilogy within the Living Force roleplaying campaign, penned by Morrie Mullins and brought to the public by Wizards of the Coast during 2001.