Why are foreign blacks bought and sold into slaves by nobles? I said hundreds of years ago. Why? Why is there

After the European Renaissance and the era of great navigation, the social economy developed rapidly, but the corresponding humanistic trend of thought stayed in the dark Middle Ages, and the religious forces gradually declined. However, aristocratic forces and big capital businessmen expanded rapidly. In order to sell the interests of slaves, the nobles sought cheap labor in the manors of various colonies. So after discovering that blacks were as weak as lambs, slaves came into being. At that time, basically, the darker the skin color, the more backward the development of civilization. Europe is entering the industrial age, the yellow race in Asia is still in the feudal age, and most blacks are in the slave age or even primitive tribes.

European nobles, businessmen and military officers plundered so many colonies in the world. It is natural to rob some slaves for cheap labor. Even many Asians have been tricked into working as coolies all over the world. Just because Asians have read some books, they are not directly treated as slaves like blacks, but as cheap labor.

Before and after the American Civil War, the bourgeoisie in the north of the United States needed a lot of labor, while the southern manor owners who had mastered a large number of slaves were unwilling to put down their slave assets. Therefore, when the civil war broke out, the federal strength in the north was worse than that in the south. In order to disgust the south, Lincoln published the world-famous Emancipation Proclamation. In the end, the North won. Although the bourgeoisie in the north didn't want slaves to be free, it was always bad to punch themselves in the face, so the slave liberation movement took place.