This document discusses responses to capitalism from reformers, unions, and socialists in the 19th century. It covers Robert Owen and Charles Fourier's utopian socialist ideas to address social problems through cooperative communities. Workers organized unions to advocate for better conditions and pay. Reform laws aimed to limit child labor and work hours. Karl Marx critiqued earlier socialists as utopian dreamers and proposed scientific socialism, arguing that capitalism would inevitably lead to conflict between the bourgeoisie and proletariat classes.