Once women invented farming, and began to keep and breed...

Once women invented farming, and began to keep and breed animals, they discovered the crucial function of the rooster and the henhouse. Fathers suddenly gained a function, and could do what only women had been able to do for all those millions of years--point at a child and say, "That is my son," "That is my daughter." Patriarchy quickly followed, beginning about five thousand years ago; a very short time in the development of our species, but covering all of recorded history.