Ever since the Persian intelligentsia first discovered French literature in the 19th century, it has remained fascinated with its various genres: first with the writings of the Philosophe, then with the Romantics, the roman aventure, the realists, and, in the mid-20th century, with the existentialists and the thèâtre absurde. Moliere's comedies, in particular, were the subject of great interest and the source of many adaptations in the secularizing Iran of the Constitutional period (1905–19) and the Reza Shah era (1921–41). These comedies, often staged with the government's blessing in the newly built playhouses in Tehran and other major cities, had a great impact on the ethos of the growing urban middle classes, who viewed theater-going as a chic habit with a moral essence.