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
Answer:
They helped other people change the world and how they made important mottos. Another thing they did was make people realise how important they are
He explains that people or born with natural rights that another human cannot take away from somebody. He gives the examples of life, liberty, and the pursuit of happiness, among others.
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The American Government responded with war
In 1911, Carnegie, the wealthy industrialist, created the Carnegie Corporation and endowed it with the majority of his remaining wealth so the corporation would continue his philanthropic (donation) activities after his death.
When it was established, the Carnegie Corporation was the largest single philanthropic trust ever created with 135million dollars in assets. Carnegie was the corporation's first president.
By the time he died. Carnegie had already given 350 million dollars away, and the remaining 30 million was given to foundations and charities.
