The Progressive Era in the United States was a period of social activism and reform that flourished, causing the religions to change. They began "Prohibition" which prevented the sale of alcohol. More went to churches and gatherings because of this. acording too http://www.answers.com/Q/How_did_religious_attitudes_change_in_1920s
The transfer of plants, animals, people, and diseases between hemispheres. This would be the correct answer!!!
Amerigo Vespucci is the explorer who deemed South America a new continent!
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