Anglais example sentences with "epochs"

From this standpoint history can be divided into two main epochs.
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In short it was only after many failures, and after many barren epochs during which, for a variety of reasons, the enterprise was neglected, that the Fourth Men did at length fashion two individuals almost precisely of the type they had originally designed. These were produced from a single fertilized ovum, in laboratory conditions. Identical twins, but of opposite sexes, they became the Adam and Eve of a new and glorious human species, the Fifth Men.
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The four-day conference gave those engaged in research on elephants, mammoths, mastodons and related fauna of the Pleistocene and Holocene epochs the opportunity to gather and explore the relevance of their prehistoric research in today's world.
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