People at this stage continued to progress and survive due to activities such as gathering and hunting. Now the Stone Age period can be divided into pre-Stone Age, middle Stone Age and modern Stone Age. Now each period showed developments in some or the other way. Initially, fire was invented and the invention was quite phenomenal. Even today most explorers prefer to use stones to lit fire. The same fire was then used to sharpen instruments and objects. These inventions or so called developments are still the same. Maybe the instruments might be different. Next, man tried to make instruments mainly weapons for his everyday purpose. Weapons included axes, spears, scrapers, awls, knives and hand axes mainly made of stone. These weapons were enough to protect themselves from wild animals and enemies. The other purposes of these weapons were for hunting, fishing and butchering purposes.
Isolating your self from others
Well, lets see, Abu was the one elected, however there was a dispute because some believed that Ali should have been chosen. All in all though, they accepted Abu as their leader.
Overloaded breaker, shortage in the wire
