"The #Ukrainian hamlet #Mykhailivka, now under Russian occupation, was pinpointed as the genetic cradle of the #Yamnaya. From there they exploded across Eurasia, spreading their genes and their way of life from Portugal to Mongolia. This expansion, archaeologists and geneticists say, defines much of the world’s genetic and cultural heritage to this day. “They changed the populations of #Europe, and ultimately, the world,“ Reich said."