Which who did Nubians trade name at least 3

Explanation:

Around 3500 BCE, the “A-Group” of Nubians arose, existing side-by-side with the Naqada of Upper Egypt. These two groups traded gold, copper tools, faience, stone vessels, pots, and more. Egyptian unification in 3300 BCE may have been helped along by Nubian culture, which was conquered by Upper Egypt.

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b) he seized power from the directory and appointed himself emperor

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