 The powerful Yamnaya culture is one of the most important cultures you may not be too familiar with and may actually be related to. It existed around 5,000 years ago in the Pontic Caspian steppe and expanded across Eurasia over generations and through associated cultures, expanding steppe ancestry in the process. This expansion was probably very violent and was perhaps close to a genocide. It likely consisted of bands of men on newly domesticated horseback wiping out male populations across Eurasia and marrying their women. A 2017 study found that this was a male-dominated migration, as for every migrating female from the steppe, there were between 5 and 14 migrating males. You can only imagine the carnage. Subscribe for more.