All modern societies evolved out of agrarian societies. Before the Industrial Revolution the male endurance value and physical strength translated directly to political power. read more
The tribe that sends it's men and only its men into battle wins because when it comes to having children, a woman can only really have one child every couple if years sustainably whereas a man could theoretically father hundreds in that same time. This makes women a much more important factor than men in determining the success of a population. read more