"women get paid slightly less than men"

Weight the raw data by the type of work taken; women, on average, get paid less because they are more likely to have taken a part-time place, which naturally pays less. A man and a woman, in the same job where your salary isn't negotiated, are paid exactly the same as men.

With negotiated pay; men have tested as being more demanding; it's as simple as that. If you ask for more, you'll probably get more...

it is funny that the patriarch-ism is rather new in the west and northern Europa.
Rather during the beginning of Christianity to be exact. before that women were almost worshiped in some areas.