This is a story about Italian y-DNA. But putting it that way is misleading. For there is not a single coherent story of “Italianness” that stretches back in time. And that story is almost inseparable from the stories of the surrounding populations with which developments in Italy are intimately connected. But it is the case that the science of genetics is gradually unfolding a richer picture of the past than was known before. If we go back far enough (thousands of years) we find (along the patrilineal line) that virtually all Italians are descended from only fifty-three men. Why there are so few, we will see below. Casual labels are…