The numerous artifacts discovered at these sites have shed light on the material and spiritual culture of this ancient people during the late
Eneolithic period. Amongst the finds are stone and bone tools, metal objects, and a huge cache of clay vessels. There are also anthropomorphic and zoomorphic figurines made of clay or bone. Grain residues were also excavated. The residents kept cattle and other domesticated animals in these settlements. Most of these sites are associated with the
Leilatepe archeological culture of the first half of the fourth millennium BCE. It is believed that this was the result of the migration of near-eastern tribes from
Mesopotamia to South Caucasus, especially to Azerbaijan. According to the excavators, Discovery of Soyugbulaq in 2004 and subsequent excavations provided substantial proof that the practice of kurgan burial was well established in the South Caucasus during the late
Eneolithic. The roots of the Leylatepe Archaeological Culture to which the Soyugbulaq kurgans belong to, stemmed from the
Ubaid culture of Central Asia. The Leylatepe Culture tribes migrated to the north in the mid-fourth millennium, B.C. and played an important part in the rise of the
Maikop Culture of the North Caucasus. A number of Maikop Culture kurgans and Soyugbulaq kurgans display the same northwest to southeast grave alignment. More than that, Soyugbulaq kurgans yielded pottery forms identical to those recovered from the Maikop kurgans. These are the major factors attesting to the existence of a genetic link between the two cultures. == Metallurgy ==