The women were not allowed to have the same opportunities in life as men in most of the societies, as the societies had their own rules as what was a man suppose to do, and what was a woman suppose to do. With the women managing to gain their rights gradually, their lives started to quickly change, as they were presented with new opportunities in life, especially on professional level. The women were allowed to have full education, not only basic one, which of course made them more knowledgeable in numerous things. There were jobs opened up for them after they finished education, so they came into a situation to make a career. That resulted in bigger economic independence of the women, which also changed their social status and made them equal to the men.
There were three principles created by Chief Justice John Marshall 1: the constitutional is the supreme law of the land 2: the court has the power to rule that a law is unconstitutional 3: in the event of a conflict between laws, the constitution MUST be followed.