One of the main reasons for the civil war was the differences with slaves about whether it was illegal or legal to have slaves. This could have been avoided if there was agreement on how slaves should be treated.
The Congress of Vienna reorganized Europe after the Napoleonic Wars.
The major goal was to establish a balance between the Five Powers - Austria, Prussia, England, France and Russia -
As a result, the French returned territories gained by Napoleon from 1795 - 1810. Russia extended its powers and received souveranity over Poland and Finland. Austria, too extended its territory.
I think the answer is the Asians.
