This paper reports on radiocarbon (14C) results from the recent archaeological investigations in the ancient frontier fortress of Rabati, in southwest Georgia, a collaborative research project involving archaeologists from the Georgian National Museum and the University of Melbourne. From the first three excavation seasons spanning 2016, 2018, and 2019, it became clear that significant Bedeni phase deposits capped most of the summit of the site. Levels with their distinctive vessels and a range of contemporary, local domestic wares, pits and some traces of architecture seal underlying Early Bronze Age strata. The Early Bronze Age levels include massive architecture rarely seen in Kura-Araxes settlements. Some finds can only be described as unique and extraordinary while others suggest that the core population was stable with long-held traditions, yet open to new influences infiltrating this highland site during the subsequent Early Kurgan (Martkopi-Bedeni) period. We discuss the key discoveries at Rabati relative to the 14C readings from the site within the wider setting of contemporary sites in the Caucasus.

The absolute chronology of the Kura-Araxes (KA) culture in the Southern Caucasus still represents a challenge due to the fragmentation and inadequacy of the radiocarbon record, as well as the inconsistencies in material typologies in the region. Recent archaeological fieldwork at the site of Aradetis Orgora in the Shida Kartli region of Georgia revealed four occupation levels dating to the KA II phase according to the local relative chronology. 14C samples were collected from reliable contexts and further selected according to reliability criteria, taking into account both archaeological issues and lab procedures. FTIR was applied in order to determine the preservation of charcoals and to monitor the efficiency of lab treatments on all the samples. Only accurate 14C measurements were selected for Bayesian analysis incorporating stratigraphic information. Two models were run, the second of which simulated intervals corresponding to unexcavated stratigraphy or due to a lack of samples. In this article, the available 14C dates for the KA occupation at Aradetis are presented for the first time and analyzed using Bayesian principles. The results of Bayesian modeling suggest that the occupation of the excavated KA II levels cover the period between 3040–2810 BC (simple model) or 3090–2720 BC (interval model).