A. His pilgrimage to mecca boosted trade and wealth.
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I think its "divided the south into military districts"
As the population grew, the Mississippians began to practice agriculture and grow more crops.
Initially these people were hunters and gatherers who moved from place to place. As they increased in size, they began to practice agriculture and grow crops such as wheat, oats and corn.
During the woodland period, that was when the people were nomads. In the Mississippian period, they adopted agriculture and became farmers.
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