The most significant discovery ever.

The fire is the best discovery because in the prehistory it was utilized to cook the crude aliments, to keep the dangerous animals away, to get warm, its flames worked as arms for the fights and the hunting and its smoke worked for the first communications. But the most important use was shine the night and the caves, it helped to see many things that the cavernicoles did not see in centuries. And it combated the ice age. Without the fire the ice age could have killed many living beings, and maybe wiped out the humanity.  

No one knows when was exactly the discovery. Some say that it was the volcano eruption, other people say that it was the fall of lighting, but 350.000 years ago it started to  be used. The big problem was keep it on. With the time the men learned how use the fire perfectly. The men could cicatrize their injuries with the fire, also they could boil the water.

Nowadays the fire is the element that allow the working to many industries and factories that need this type to combustion to can work.