Answer:
True
Explanation:
All these ancient civilization developed social class systems, or even, social caste systems, because these social classes lacked mobility, and were mostly determined by birth.
The general rule was that there were roughly three classes: an upper ruling class, composed of kings, emperors, and warriors. A religious class, and lower class, which was composed of farmers.
Some of these civilizations also had a merchant class, and a slave class (the lowest of them all).
