By 1920, south africa, nigeria, and kenya were all colonies of which country

What does the creature say is the reason for his bloodthirsty, fiendish behavior?

Which sequence of events shows how mesopotamia developed? a. people formed divisions of labor. the population grew. agriculture was the basis of the society. b. people built cities. people grew crops. people built canals. c. people made laws. people moved to villages and cities. people lived where crops could grow. d. people settled where crops could grow. the population grew. villages and cities formed. select the best answer from the choices provided a b c d

This is for my social studies guide and i can answer 21/22 of it perfectly fine. but can someone tell me what the caste system was, and what divisions/classes that it was apart of it?