Well for starters once these civilizations started to get an adequate food supply they started to do other things and started to farm which let people settle do and build cities
They are all in the mountain time zone <span />
In January 1973, the Supreme Court issued a 7–2 decision ruling that the Due Process Clause of the Fourteenth Amendment to the U.S. Constitution provides a "right to privacy" that protects a pregnant woman's right to choose whether or not to have an abortion.
