According to Wikipedia: "Johan August Strindberg (22 January 1849 - 14 May 1912) was a Swedish playwright and writer. He is arguably the most influential and most important of all Swedish authors, and one of the most influential Scandinavian authors, along with Knut Hamsun, with whom he fraternized while in Paris in the mid 1890s, Henrik Ibsen, Søren Kierkegaard and Hans Christian Andersen. Strindberg is known as one of the fathers of modern theatre. His work falls into two major literary movements, Naturalism and Expressionism."