RADIOCARBON DATING OF THE ZAGREB UPPER TOWN PREHISTORIC SETTLEMENT

During the 1989-1994 renovation of the Zagreb Town Museum, it became o bvious that the area was inhabited in prehistoric times. We C-14 dated 40 samples to determine various settlement periods. The ages of the s amples span a much longer time than expected, from the Early Iron Age (Halistatt period) to the 19th century AD. C-14 dates on charcoal samp les placed the remains of dwelling pits in the Hallstatt period, 8th t o 4th century sc. A late La Tene settlement dated between the 4th cent ury BC and the 2nd century AD. Medieval fortifications were identified in the western part of the complex, consisting of a well-preserved wo oden structure used for construction of the royal castrum. C-14 measur ements on wooden planks and posts date the construction of the fortifi cation between the 13th and 15th centuries AD and branches, beams, and tools found below the basement of the Convent of St. Clare span the 1 6th to the 19th century AD.