Who is Anton Chekhov?

You already know who is Fyodor Dostoevsky and Leo Tolstoy. And it's time to know about Anton Chekhov.
Anton Pavlovich Chekhov Анто́н Па́влович Че́хов, 29 January 1860 – 15 July 1904) was a Russian playwright and short story writer, who is considered to be among the greatest writers of short fiction in history. 
His career as a playwright produced four classics and his best short stories are held in high esteem by writers and critics.

Along with Henrik Ibsen and August Strindberg, Chekhov is often referred to as one of the three seminal figures in the birth of early modernism in the theatre. Chekhov practised as a medical doctor throughout most of his literary career: "Medicine is my lawful wife", he once said, "and literature is my mistress."