Who made up the different classes in society?

sociologist

Explanation:

Sociologists generally posit three classes: upper, working (or lower), and middle. The upper class in modern capitalist societies is often distinguished by the possession of largely inherited wealth.

there are many ways of getting involved on your local party. attached you will find the brochure that describes some ideas: go ahead and visit your local hq, become a volunteer on your comnunity or struggle up for your own ideas so you can make them real.

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.