The history of fire use

The discovery of the fire yielding is one of the most important inventions of humanity. The fire caused the fear and the awe in the prehistoric people. The fire helped to support the conditions of the great asperity of the climate in winter; it also made the food softer for chewing making it tastier, comfortable for boiling allowing keeping it longer.
The fire always allowed living at night lightening everything around it. Besides it was important not only in the prehistoric times but also for the next centuries up to the invention of electricity. The candles with the burning fire were the only source of the lightening at night.
The fire frightened the wild animals that tried to attack the prehistoric tribes. The fire helped to turn the forest into the ploughed field fertilizing the land with ash. With the help of the fire the clay dishes were made, they also melted the metals to obtain the necessary thing in every-day life.
The meeting of people and fire happened during the forest fires or the volcano eruption. The heat released by the flame was obvious. Besides, prehistoric people could also find the fruits and animals suffered from the fire the taste of which made people search for the way to yield the fire.
So people used the friction (the friction of the hard tree with the soft one), drilling (the revolving tree piece in the hole) and cutting (two stones were hit one another provoking sparks) to yield the fire.