How did August Strindberg influence Swedish prose writing?

August Strindberg significantly transformed Swedish prose by introducing a "pregnant, colloquial style" in his early novels and short stories, which catalyzed a long-overdue regeneration of the language.1

His 1879 novel, The Red Room (Röda rummet), is widely recognized as the starting point of the modern Swedish novel. By moving away from established literary conventions, Strindberg’s work—particularly his autobiography, The Son of a Servant (Tjänstekvinnans son)—also provided a powerful impetus for the tradition of candid, self-revelatory writing in Swedish literature. Through these contributions, he became a central figure in the "modern breakthrough" of Swedish letters, overshadowing his contemporaries and setting a new standard for realism and social engagement in prose.12