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begins in the first humans and finish when the first document was written
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finish of prehistory and beginning of antiquity
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between the end of the roman wester empire and the first document writing
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finish os antiquity and beginning of the muddle ages
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starts at the end of the western roman empire and finish when christofer columbus discovers america
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between the americas discover of columbus and the french revolution
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starts at the french revolution and nowdays has no finish