The thing which was a major factor that threatened the major unity in the United States in the mid-19th century was:
<h3>The Great Depression</h3>
This refers to the period around 1929 in the United States which has a profound effect on the national economy.
This led to the failure of many banks, increase in unemployment and high deflation rates which all threatened the national unity.
Read more about Great Depression here:
brainly.com/question/441267
The reason for why is very simple: they believed it would increase their chance of wining. This is a common practice in the US politics and why the two main parties are well the only important parties in the US today. It is because they adapt and incorporate the beliefs of minor parties that appear and they address the issues raised by the new parties.
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Answer:
Cultural Convergance
Explanation:
Think of this to help you remember
<em><u>C</u></em><em><u>u</u></em><em><u>l</u></em><em><u>t</u></em><em><u>u</u></em><em><u>r</u></em><em><u>a</u></em><em><u>l</u></em><em><u> </u></em><em><u>&</u></em><em><u>'</u></em><em><u> </u></em><em><u>P</u></em><em><u>l</u></em><em><u>u</u></em><em><u>r</u></em><em><u>a</u></em><em><u>l</u></em> share their root ending, <em><u>-</u></em><em><u>r</u></em><em><u>a</u></em><em><u>l</u></em><em><u>,</u></em><em><u> </u></em> meaning at least 2 , but no less
<em><u>C</u></em><em><u>o</u></em><em><u>n</u></em><em><u>v</u></em><em><u>e</u></em><em><u>r</u></em><em><u>g</u></em><em><u>a</u></em><em><u>n</u></em><em><u>c</u></em><em><u>e</u></em> is just a big word for bring together and make it one, equal or whole. So , <em><u>C</u></em><em><u>u</u></em><em><u>l</u></em><em><u>t</u></em><em><u>u</u></em><em><u>r</u></em><em><u>a</u></em><em><u>l</u></em><em><u> </u></em><em><u>C</u></em><em><u>o</u></em><em><u>n</u></em><em><u>v</u></em><em><u>e</u></em><em><u>r</u></em><em><u>g</u></em><em><u>a</u></em><em><u>n</u></em><em><u>c</u></em><em><u>e</u></em> , means the joining, combing or "converging/merging" together 2 or more reasonably different ways of living, different types of beliefs/morals, clothing needs to be made to accompany new styles to, more construction to meet population standards...
But to pretty much sumn up why <em><u>C</u></em><em><u>u</u></em><em><u>l</u></em><em><u>t</u></em><em><u>u</u></em><em><u>r</u></em><em><u>a</u></em><em><u>l</u></em><em><u> </u></em><em><u>C</u></em><em><u>o</u></em><em><u>n</u></em><em><u>v</u></em><em><u>e</u></em><em><u>r</u></em><em><u>g</u></em><em><u>a</u></em><em><u>n</u></em><em><u>c</u></em><em><u>e</u></em> is your correct answer