Slavery in it's most basic sense is where property rights are applied to people, so the black slaves during that time were not paid as they were seen as equal to cattle or livestock.
Antitrust laws, insurance benefits and improved working conditions
Comminers constituted the 3rd estate. Its the best known system of the French Ancien Régime used until the French Revolution.
The statement about kush's history that is true is that Kush controlled all of Egypt at one point. The Kingdom of Kush with its three noteworthy urban areas of Napata, Meroe, and Kerma, rose in the Nubian Desert south of Egypt along the Upper Nile River Valley from the second thousand years B.C. to the fourth century A.D. Prehistoric studies, engineering, craftsmanship, and entombment give the most data about the Kush.ite Kingdom.