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3.3 million years ago: Prehistory Begins

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3.3 million years ago: Prehistory Begins

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The beginning of recorded history with the invention of writing systems.

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3.3 million years ago: Prehistory Begins

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A period of prehistory in which humans used primitive stone tools.

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The Metal Age was the period in which humans developed complex techniques for working metals.

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preparation of soil, sowing, adding manure and fertilizers, irrigation, harvesting and storage.

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Prehistory is the fact of the origin of human activities and civilization thousands of years ago.

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An intermediate phase in the development of a civilization or period, such as the Bronze Age or the Middle Ages.

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period that extends from the appearance of the first settlers on the continent until the invention of the first American writing system.

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was the period of universal history that spanned between the middle of the fifteenth century and the end of the eighteenth century

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The Contemporary Age is the historical period that spans from the beginning of the French Revolution in 1789 to the present day