if you went back in time and killed hitler (since hitler killed himself) would you be the equal of hitler

No, you would either be higher or lower, just depends on the status of the results.

the increased occurrence of polygamy

the hebrew bible is the sacred text of judaism;

the koran is that of islam.

among eastern religions, the sacred scriptures of hinduis are the four vedas and the upanishads, among others.

a main characteristic in these books is that un most of them we find certain "norms" of behavior, as is the case of the bible that has it's commandments. these rules are to regulate the behavior of believers and faithful of their respective faith.

these rules tell us what is right and what is not.