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Hello everyone. Are you ready? Okay, let's start. Stand up and repeat with me.

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History is divided into five different periods, which are prehistory, the ancient history, the Middle Ages, the early modern age and the modern age.

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Each period starts and ends with a special event.

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Let's start with the first one, the prehistory.

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Prehistory started when human first appeared

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and ended when people learned to read and write.

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Ok, have a wonderful day today!