ANNOTATION.
Cultural innovations were recorded for the period of Early Iron Age on the excavation cemetery Ustyug-1. It’s localized on the left bank of Middle Tobol. Kurgans had one grave (numbers 51 and 52) were dated by V centuries BC. Its gave the burials with animals on the southern edge of the log rolling of the pits. We suppouse basing on the dating of burials on the arrow heads, which allow to relate the burials to interval of V century BC that excavated graves reflected the process of mutual influences local of Culture of Baitovo population and alien population.
Custom of placing under kurgan the horse with horseman as well-known practice in Scythians world didn't be noticed for sites of Culture of Sargatka on this territories in the previous period of studying this epoch. Appearance of it we connect with Sakien’s migrants influence from Central Kazakhstan or foothills of Altay. They invaded to Baitovo culture's territory and contributed to transformation it to Culture of Sargatka. Very far migrations as penetrations per thousands kilometers apparently were consistent to conquering spirit of nomad’s culture and were real expression it military superiority.