They are already from the 6th century BC. Cr. These spaces are inhabited. In Roman times in this area was the Roman province of Ponija Savija. Archaeological sites on Vlaislav hill, Bodegraja, Cagama and in Benkovac at the Otrnci site testify to us about the age: the remains of buildings, country houses, sculptures of Roman deities and sarcophagus ornaments. The area in which the municipality of Okučani is today is mentioned in the written documents in the 12th century. It was written that the name of the stream and the possession originally was in the ikava form - Lisnik. Until the 16th century there will be mentioned Lesnik (Lesnica), followed by Ljesnik (estate) and Ljesnica (river), which will become Sloboština somewhere in the period of Turkish rule and the establishment of the anti-border border area. By the year of 1691, a Turkish settlement would develop a settlement of Dijanovac around the great hunters (holes) that the stream of Sloboština does. The name of Okučani originates in 1790. The name was given to the baker Okor, which inherited the great estate. In Okučani, in 1906, the chapel of St. Vitus was erected after the defeat of the authorities, provided that it can not be higher or higher than the Orthodox church. The school in Okučan was built in 1803 o At a state cost, called the "Trivial School", and the new bigger school building was built in 1907.