Fierce as they were, the Beakers had their standards and apparently a sophisticated family system, as we learn in "Kinship and social organization in Copper Age Europe. A cross-disciplinary analysis..." by Sjogren et al, 2019. The study examines relationships in farm cemeteries at Irlbach and Alburg of Bavaria through personal DNA.
|Cut from Fig 1.|
Sjogren et al. compare reconstructed PIE kinship structures to that of the Straubing Beakers, and a reasonable assessment is that they are quite similar. Up till now, various hypotheses have attempted to link technologies and localities of pre-historic archaeological cultures to that of reconstructed PIE. Whatever the correctness of the previous hypotheses, this is an entirely new twist combining DNA with other fields of study.
|Fig 6. Alburg cemetary relations|
The implications go beyond simply guessing at what language a certain group of people spoke. Instead it brings us back to the strength of the Beakers and what was it specifically that caused the success of the Proto-Indo-Europeans in their spread across vast stretches? What was it that caused the nearly uniform y-chromosome changes, as we see in completely M269 Irlbach and Alburg?
I have mentioned before that horses, wagons, metal, dairy, etc, are unlikely to be the engine of this expansion. Rather, the answer is before us in this study. Monogamy mostly (Heinrich, Boyd, Richerson, 2012).
And the strength of the pack is the life mates and a social system that is well-ordered.
|Life-pair Wolf Center|
"For the strength of the Pack is the Wolf, and the strength of the Wolf is the Pack."