There is a difference in chronology based on radiocarbon dating and historical dates associated with Near Eastern written sources. With the introduction of AMS dating, this gap has become smaller, but has not disappeared. However, the application of Bayesian statistics to this dating often produces dates corresponding to historical and dendrochronology. This allows us to assume that as the radiocarbon method improves, its results will coincide with the historical chronology. Comparison of materials from forest cultures of Eastern Europe, the Fatyanovo and Abashevo, allows us to connect them with the chronology of Central Europe, and, thereby, to determine the lower boundaries of these cultures within the dendrochronology of the Alpine zone. As a result, younger dates have been obtained for them than the results of radiocarbon dating give: after the middle of the 27^th century BC for the Fatyanovo culture and ca. 20^th century BC for the Abashevo.