Beyond abolishing slavery in the United States, the Civil war was a pivotal event in American history for a number of reasons. One major importance of the war was that the Union retained its territorial integrity and the South was not able to secede from the Union or defeat the Northern forces. Also as a result of the war the Northern States were able to assert political dominance and a degree or retribution through the reconstruction efforts.
Yes I think America had to show that we don't hide in a corner if someone attacks us, we fight back, and it worked
The answer is: The Byzantine emperor.
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It depends on how specific you want to be, but he was declared kaiser in 1871; more specifically, January 18th, 1871.