Por qué los primeros seres humanos eran nómadas?

the part i "agree with' is " it should not matter what color their skin is or what their cultural beliefs are." but for the main part i agree with it all or if cause now and days there are some people don't get the job cause there skin color and there beliefs and some times they don't even get the same repest as white people. we are all equal.

because the sun creates the shadows and its only what people on earth see in the sky which are the phases of the moon.