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A plague that killed alot of people throughout the middle ages
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Discovered in south america and brang back to Europe, provided quick and easy food to the starving.
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blood, drugs and vaccines could be injected into peoples blood
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The great fire of london boiled the water sources and burnt away the slums cleansing the city of the plague and alowing them to rebuild and start again+
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Extracts grain from the wheat in a quicker more efficient way then by hand
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