Your answer is is simply <span>Piaget</span>
The similarity between the social system is the hierarchy that created in society based on the job that held by individuals.
The main difference is the openness. South Asian culture directly acknowledge the discrimination while the European culture masked it even though the nobles held all the power in the society.
Religion because it is important nowadays
I’ll let u know as soon as i get the answer!! i did some work like this i think i can figure it out