The monumental painting Il Quarto Stato /The Fourth Estate by Giuseppe Pellizza da Volpedo (1868-1907) portrays a group of workers on strike.
It symbolises the social protest at the beginning of the 20th century, as well as the emergence of a new social class - the proletariat - which becomes aware of its rights within the new industrial society.
Giuseppe Pellizza da Volpedo | Il Quarto Stato / The Fourth Estate, 1901 (detail) | GAM - Galleria d'Arte Moderna di Milano, Milano