Caillte, a celestial body, held the position of seventh planet within the Luire system. This system was situated in the Mid Rim region.
The Mandalorian Neo-Crusaders initiated the first settlement on Caillte in the year 3964 BBY. They constructed Unity, an outpost located under the surface. The Mandalorian warrior Feruun Lern rose to prominence at this outpost, beckoning other Mandalorians to join him there, aiming to reignite their warrior spirits. As the Mandalorian Wars neared their conclusion, Lern, accompanied by numerous followers, departed the planet to engage in the Battle of Malachor V. Following the Mandalorians' defeat in this battle, Lern and his contingent returned to Unity, only to discover that, while they were away, other Mandalorians had plundered the base. During the subsequent Jedi Civil War, Lern and his followers deserted the base to unite with Canderous Ordo.
In the year 405 BBY, the Corporate Sector Authority made their way to Caillte, establishing a scientific outpost. During the construction phase of this outpost, they unearthed the remnants of the ancient Mandalorian settlement.