Discovery and utilization of fire

* Discovery of fire * Ancient people discovered the fire by wildfire and eruption of volcano. Clever utilization of fire made people use big energy. 'It might be useful to keep fire at night and when it is cold' 'Oh, let's move fire to tree to keep it' 'Hey, food made with fire is soft and delicious!' 'The cup of burned clay is very hard!' By those coincident discovery and knowledge, people got to know how to make clay pot, boil water by using clay pot and boil food.

* Utilization of fire * Ancient people began to think that if there was a way of making fire than waiting for wild fire. They made spark with flint and hit on the idea of making fire by putting spark on flammable thing. Also, they rub trees each other to make fire. People began to use fire 300000 to 500000 years ago. Peking man used fire for heater and cooking.

---

---