The Industrial Revolution led to mass urbanization as people moved from farms to cities for work. This created new social classes - an emerging middle class of factory owners and entrepreneurs prospered while the working class faced poverty, unsafe working conditions, and lived in overcrowded slums without basic sanitation. Workers organized unions and protests like the Luddites who smashed machines, but had little power. Religions like Methodism helped workers cope, while muckraking journalists exposed issues and pushed reforms through legislation like the Pure Food and Drug Act.