Fire.(Issue)

Fire extended humans' geographical boundaries by allowing them to travel into regions that were previously too cold to explore. It also kept predators away, allowing early humans to sleep securely. Fire, in fact, has been a significant factor in human development and progress in many ways. Other obvious benefits of fire are its uses in cooking and in hunting. Probably even more important, however, is that learning to control fire allowed people to change the rhythm of their lives. Before fire, human daily cycle coincided with the rising and setting of the sun. With fire, though, human gained time to think and talk about the day's events and to prepare strategies for coping with tomorrow.
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