Leonid Nikolaievich Andreyev (Russian: Леони́д Никола́евич Андре́ев, 21 August [O.S. 9 August] 1871 – 12 September 1919) was a Russian playwright, novelist and short-story writer, who is considered to be a father of Expressionism in Russian literature. He is regarded as one of the most talented and prolific representatives of the Silver Age literary period. Andreyev's style combines the elements of realist, naturalist, and symbolist schools in literature. Of his 25 plays, his 1915 play He Who Gets Slapped is regarded as his finest achievement. Source: Wikipedia (en)