In the ancient time, there were only a few people in the world. These people move from place to place over the land. They hunted animals for food.
People didn’t know how to grow food in the beginning. But when they could do it, their lives changed. Looking for food became easier. They could stay in one place and grow food.
People began to live together, so the first village grew. Many people came to work in the villages. These villages grew very big. When machines appeared, life in the villages changed again. Factories were built. More and more people lived near the factories. Then cities were formed.
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