Several cities were growing. Rural-urban migration was increasing.
Population also increased in urban areas.
The advanced technological change left many people out of work. So unemployment forced workers to work on low salary.
As a result of the industrial revolution two new industrial classes emerged. These were
The industrial middle class (industrial bourgeoisie)
The proletariat (industrial working class)
Industrial Bourgeoisie were factory owners and wealthier groups of the society. On the other hand, the proletariat or working class were poor factory workers.