Six radiocarbon analysis have determined the age of the underground labyrinth "Ravne" in Visoko

Dr. sci. Semir Sam Osmanagich

Six radiocarbon dating confirm existence of the four old cultures in the mid-Bosnia:

1) The Paleolithic culture;
2) Older than 5000 years;
3) Younger than 5000 years;
4) Neolithic cultures, 3000-4600 BP.