Cosmoblogger

Many humans have some historical knowledge. Early man stayed in trees or caves. Power needed was generated by man power. Mankind ate existing plants or fruit from trees to exist. People who stayed in groups noticed that they could kill animals for food. Many people cut up the hunted animals and taking away the skin for clothing.As civilization advanced, water and wind power were found as invaluable resources of power in the growing and harvesting of food. Making use of water and wind also

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