The district of present-day Zadar has been populated since prehistoric times. The earliest evidence of human life comes from the Late Stone Age, while numerous settlements have been dated as early as the Neolithic. Before the Illyrians, the area was inhabited by an ancient Mediterranean people of a pre-Indo-European culture. They assimilated with the Indo-Europeans who settled between the 4th and 2nd millennium BC into a new ethnical unity, that of the Liburnians. Zadar was a Liburnian settlement, laid out in the 9th century BC, built on a small stone islet and embankments where the old city stands and tied to the mainland by the overflown narrow isthmus, which created a natural port in its northern strait.M. Suić, Prošlost Zadra I, Zadar u starom vijeku, Filozofski fakultet Zadar, 1981, pages 61–113
