Mongol invasion of Rus'
The settlement of Kolomyia was first mentioned by the Hypatian Chronicle in 1240 and the Galician–Volhynian Chronicle in 1241 a time of the Mongol invasion of Rus'. Initially part of Kievan Rus', it later belonged to one of its successor states, the principality of Halych-Volhynia. On the order of Boroldai, the city fortress was burnt down in 1259. Since the mid 13th century it was known for its salt mining industry.