The disadvantage of the radiocarbon method used for dating archaeological cultures is the very wide probability intervals, which often differ from the results of historical chronology and dendrochronology. The work is aimed at methodological substantiation of the building of the Eurasian chronology based on the identification of benchmarks associated with volcanic and seismic events of a global scale. Sometimes synchronous abrupt transformations occurred in Eurasia, which can be explained by global natural disasters. Cyclical fluctuations in solar activity cause too small temperature changes over a short period of time. However, these fluctuations in solar radiation influence the increasing volcanic and seismic activities, which could create migration-inducing conditions in many areas for 1–3 years. These events can be dated by comparing the dendrochronological data with the chronology of the volcanic events recorded in the ice cores. In the case of creating as broader as possible systems of the relative chronology of Bronze Age cultures, it is possible to establish the sequence or synchronicity of cultural transformations and connect them with global volcanic events.