Final answer:
Marx and Engels believed that historical change took place as a result of class struggle between the bourgeoisie and the proletariat. They believed that capitalism would be destroyed when the working class overthrows their bourgeois oppressors, leading to a classless society.
Step-by-step explanation:
Marx and Engels believed that historical change took place as a result of struggles between opposed social classes. In the age of industrialization, the struggle would take place between **the bourgeoisie**, who owned the means of industrial production, and **the proletariat**, the underpaid workers whose labor they exploited. Marx and Engels believed capitalism would be destroyed when the have-nots rose up in revolution and overthrew their bourgeois oppressors. All people would then be equal, and all property would be held in common. Class divisions and class conflict would become a thing of the past. This philosophy became known as Marxism and formed the basic ideology of those who called themselves socialists in the second half of the nineteenth century.