How did class divisions in europe change during the nineteenth century?

The top of the European classes consisted of the upper class which was represented by aristocratic landowners and corporate magnetes. The upper class was influenced by politics immensely.

Secondly was the middle class which arose after the industrial revolution which offered new forms of production. There were more flexible investments than the land held by the nobility and church. The middle class often consisted of experts in industrial technologies, doctors, lawyers, engineers, teachers, and clerks.

Lastly, was the lower class that comprised of the working class of wage workers who had their own cultures. They formed their own societies in mill villages and industrial cities. They often lacked money despite working for long hours which made it impossible for them to educate their children, or advance up the economic ladder.

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.