Answer:
I think it would be Aztec
The secession of Southern States led to the establishment of the Confederacy and ultimately the Civil War. It was the most serious secession movement in the United States and was defeated when the Union armies defeated the Confederate armies in the Civil War, 1861-65. Hope this helps, good luck! :)
The correct answer to this open question is the following.
Although there are no options attached, migration chains affect the immigration patterns or numbers of immigrants entering the country in that they increase the number of immigrants that try to enter the United States, trying to find better living opportunities or are escaping from political persecution in their respective countries.
A migration chain is a pattern that develops in the site where immigrants are established and form their communities. These former immigrants receive others that are coming and welcome them. So they keep their religion. traditions, customs, history, and culture, trying to form a tight bond, and not accepting the American culture. That is why in large American cities such as Chicago, Nee York, Miami, or Los Angeles, you can find ghettos or large Italian, Chinese, Korean, Mexican, Cuban, or Puerto Rican neighborhoods.
Answer:
The Russian REvolution
Explanation: The first Red Scare occurred in 1917, which was the year of the Bolshevik Revolution.