The three-age system is the periodization of human pre-history (with some overlap into the historical periods in a few regions) into three time-periods: the Stone Age, the Bronze Age, and the Iron Age; although the concept may also refer to other tripartite divisions of historic time-periods. In history, archaeology and physical anthropology, the three-age system is a methodological …

Lepenski Vir (Serbian Cyrillic: Лепенски Вир, "Lepena Whirlpool"), located in Serbia, is an important archaeological site of the Mesolithic Iron Gates culture of the Balkans.The latest radiocarbon and AMS data suggests that the chronology of Lepenski Vir spans between 9500/7200–6000 BC. There is some disagreement about when the settlement and culture of …