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Animals

: Aphids
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Dates

: 1810-1820
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Land

: CHANGES IN FARMING METHODS
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People

: Changes in Farming Methods
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Places

: St. Louis, MO
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Plants

: CROP ROTATION
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Technology

: Root Worms

Clip Search: Aphids, 1810-1820, CHANGES IN FARMING METHODS, Changes in Farming Methods, St. Louis, MO, CROP ROTATION, Root Worms