That was then.......................

     On a hike in East Africa 2 million years ago, you might well have encountered a familiar cast of human characters:  anxious mothers cuddling their babies and clutches of carefree children playing in the mud;  temperamental youths chafing against the dictates of society and weary elders who just wanted to be left in peace;  chest-thumping machos trying to impress the local beauty and wise old matriarchs who had already seen it all.  These archaic humans loved, played, formed close friendships and competed for status and power - but so did chimpanzees, baboons and elephants.  There was nothing special about humans.  Nobody, least of all humans themselves, had any inkling that their descendants would one day walk on the moon, split the atom, fathom the genetic code and write history books.  The most important thing to know about prehistoric humans is that they were insignificant animals with no more impact on their environment than gorillas, fireflies or jellyfish.

-Yuval Noah Harari,  Sapiens:  A Brief History of Humankind