Main groups = labor activists, female reform organizations who wanted to protect women and children from exploitation, and forward looking businessmen who wanted workers to have a voice in economic decision making
Main ideas = bringing significant change in American social and political life.
Answer: Americans and immigrants who wished to start new lives on farms and other rural projects who moved to the west, since during this period of migration there were very few established towns in which to work.
Explanation:
The right answer is the third one: the bubonic plague originated in the Gobi Desert, part of the then Mongol Empire, around 1320. It then propagated to China and subsequently to India, Europe and Russia. The disease spread via trade routes mainly as a result of a poor hygiene. It never reached the American continent or Sub-Saharan Africa.
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the social improvement wasn't tied to any social structures,made the bible more available and increased the reading ability