1. Discovery of Fire

Now man uses fire skillfully, but they were afraid of it first like other animals.  But, the man in the Old Stone Age realized that if they could use fire well, they would get a great help and they got live  charcoal when there was a fire by mountain fire by a thunderbolt and explosion of volcano and kept it in the cave.  Finally, they knew how to make a fire by using a stick or stone.  

The man in the Old Stone Age first made a fire by using a stick or stone.  Then the way of making the fire was developed to 'Hwalbibi' like the shape of bow.  
 

 
2. Use of Fire
 

The man could avoid the cold by using fire and protect themselves from beasts which are afraid of fire.  Also, fire was available for increasing their activity hours because it could lighten dark nights.  As they boiled fish or meat with fire, their foods were changed. Boiled or cooked foods foster the brain development more and are good for health.