Weegy: The United States gained a large amount of land - was a result of the Mexican-American War.
User: 20. What was the idea behind popular sovereignty in the mid-1800s?
Weegy: Allowing newly added territories to the United States to decide for themselves on the slavery issue was the idea behind popular sovereignty in the mid-1800s.
User: 3. What was the goal of the temperance movement?
Weegy: The goal of the temperance movement was to reduce alcohol consumption.
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