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Paleolithic Era-The period of time when people used simple stone tools; Old Stone Age.
flaking-chipping pieces off edges of stones.
migrate-to move to a new place to live in.
Neolithic Era-the period of time when people began to settle permanently in one location; New Stone Age.
agriculture-the raising of crops and animals for human use.
domesticate-to train something
to be useful to people.
surplus-an extra supply of something.
specialize-to do a particular
work.
civilization-a culture that has developed systems of specialization, religion, learning, and government.
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