How did agricultural advances affect Chinese society during the Middle Ages?

It resulted in more people moving to rural areas.

Explanation:

Improvements in farming machinery included, for example, the moldboard plow and watermill. Later, cotton planting and weaving technology were adopted and improved.

While around 750, 75% of China's population lived north of the river Yangtze, by 1250, 75% of population lived south the river. This migration was possible due to the introduction of quick-ripening strains of rice  from Vietnam suitable for multi-cropping.

confederacy: supported slavery, believed states should be able to nullify federal laws, supported low tariffs

union: everything else

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w.e.b du bois was the founder of the niagara movement and later the naacp, du bois disagreed with washington. he argued that african americans should consistently fight for racial equality.

ida b. wells was a journalist who wrote about the horrors of lynching in the south. wells work could be considered muckraking as it led to the development of the anti-lynching campaign.