Why did the representatives of the great powers assembled at the Congress of Vienna regard the restoration of a "balance of power" as one of their central goals?

Why was nationalism such a threat to hereditary rule?

How did the Congress of Vienna deal with the nationalities problem?

Why would someone be attracted to conservative politics and conservative ideas in the years after 1815?

Why was the definition of "separate spheres" for men in women so important in the early and mid- nineteenth century?

What were the most important reasons for the abolition of slavery in the western world and its empires?