Answer:
King Leopold II treated the Congo as his personal property and exploited the country for slave labor, rubber, and ivory. The Belgian Congo was established in 1908 after the international community pressured the Belgian government to annex the country and take it out of the king's hands. Conditions in Belgian Congo improved as the Belgian government supported education and established trade. Nevertheless, the people of the Congo increased their demands for independence.
Assuming your talking about Europe. At the bottom of the system there are Peasants, the lowest and most common. They work on fields and trade and barter. Next are knights. They protect the Peasants and Nobles. They usually get paid in gold or the Peasants goods. Next are Nobles, the rich. They buy Knights to protect them and are right below the king. They usually hire Peasants to work on their land for little pay. Lastly the king. They control everything. They have knights and Nobles and oversee everyone.
The Bill of Rights is the historical document that upholds these important principles.