Most "old" immigrants to the United States came from Western Europe, but most "new" immigrants came from Africa and Asia.
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Central and Southern America.
Northern and Western Europe.
Southern and Eastern Europe.

one of the main reasons was definitely slavery. back in 1861, republican abraham lincoln was elected and ended up being a major influence in the slavery business. slavery greatly affected the texas economy because back in 1845 during the annexation of texas, slaves became a big part of the texas population. many texans that were in favor of the secession influenced groups through party ties.

c. to guarantee the government would not infringe on individual rights or freedoms