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Encyclopedia Definition


by Wikipedia
published on 28 April 2011
Trade is believed to have taken place throughout much of recorded human history. There is evidence of the exchange of obsidian and flint during the Stone Age. Materials used for creating jewelry were traded with Egypt since 3000 BCE. Long-range trade routes first appeared in the 3rd millennium BCE, when Sumerians in Mesopotamia traded with the Harappan civilization... [continue reading]


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