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.