The election of 1860 is your answer. When the south got word of Lincoln’s election a few states started seceding within days. This led to the soon start of the war.
<span>Thorough secret police spies, programs to give every peasant his own land</span>
The high technology in the ships of the Portuguese gave them an advantage over other countries, becoming the most powerful navigators during those two centuries. Portuguese trading focused mainly on obtaining gold, ivory, and pepper; but in addition to these products, so prized in Europe, it is estimated that more than 175,000 slaves were also carried on Portuguese ships to Europe and the Americas in the greatest migration of people during the fifteenth and sixteenth centuries.
I believe it is both had restrictions on personal rights. Hope this helps.
Some characteristic of developed countries are a good economic activity, generally organized government, and a country full of wealth.
