What is a social or socio-ecnomic class?

What is the proletariat?

What is a Commune?

Why is Paris, France so important for the European view of the workers social rights movement?

What is the role of Russia in the book?

What are the two prominent opposite concepts of 19th century German philosophy?

What is the importance of iron and steel in the book?

How is the textile industry responsible for the success of the Parisian arcades?

When the enclosed walkways were built in Paris above the street level of the arcades, what happened?

Why did women get chilly while walking in the arcades?