They had writing. In mesopotamia sumerians were the first civilization who wrote. The ages before writing is called prehistoric. Since sumerians knew writing they were not prehistoric.
That's a hard one to answer but from all my reading it would seem there was one main reason. The Berbers were nomads so they never were able to be collectively together to form an army against invaders. Therefore, the Berbers were constantly being conquered by someone. Each time they had to learn new laws set out by the conquerors. When the Arabs came with their mighty army, they knew they couldn't fight so giving in was in an odd way a protection system of kinds.
This space does not get the job done for an appropriate answer. I'll simply get some information about media and government. Consider designs from the book that you see in regular day to day existence. At a certain point, Saddam Hussein was the most loathed man in America, at that point it was Osama. At the point when a nation goes to war, a pioneer's fame, for the most part, goes up. What we thought was costly gas costs a year ago are presently acknowledged as modest. I could continue for quite a while, however, ideally, you get the thought.
It was the popular slogan that led the Polk to victory.