Background

Realism in the last half of the 19th-century began as an experiment to make theater more useful to society. The mainstream theatre from 1859 to 1900 was still bound up in melodramas, spectacle plays (disasters, etc.), comic operas, and vaudevilles.
But political events—including attempts to reform some political systems—led to some different ways of thinking. Revolutions in Europe in 1848 showed that there was a desire for political, social, and economic reform. The many governments were frightened into promising change, but most didn’t implement changes after the violence ended.
Technological advances were also encouraged by industry and trade, leading to an increased belief that science could solve human problems. But the working classes still had to fight for every increase in rights: unionization and strikes became the principal weapons workers would use after the 1860s—but success came only from costly work stoppages and violence. In other words there seems to be rejection of Romantic idealism; pragmatism reigned instead. The common man seemed to feel that he needed to be recognized, and people asserted themselves through action.