Here are the matches between Column A and Column B:
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Neolithic Revolution - E. Mesopotamia (and also relevant to other early agricultural societies, but Mesopotamia is often referenced as a significant site of the Neolithic Revolution)
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Democracy - G. Greece
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Calligraphy - A. Muslim Empire (although calligraphy has roots in other cultures, the Islamic tradition of calligraphy is particularly noteworthy)
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Feudalism - F. Japan (Japan's feudal system, though feudalism also occurred in Europe)
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Bubonic Plague - J. Late Middle Ages Europe (the bubonic plague significantly impacted Europe during this period)
So the final matches are: 1 - E 2 - G 3 - A 4 - F 5 - J