There was tension in the politics of the nation which were largely due to differences in the economies of the North and the South. For the South, slavery was used as a labor source hence they supported slavery. The North on the other hand was opposed to slavery as it was largely urbanized. Different regions led to the creations of different economies.
Immigrants desired to come to the United States in order to obtain better job opportunities, and escape ongoing wars in their homeland. (Might not be the best, just kinda thought of it on the spot)
The Battle of Fort Sumter.
<span>A reason for the growth of large mental institutions during the 1800s is due to poverty in that era, causing mental health problems such as depression and problems brought on by the stress and anxiety of struggling to afford to live. This increased the requirement for mental institutions.</span>