Uncle Vanya is unique among Chekhov's major plays because it is essentially an extensive reworking of The Wood Demon, a play he published a decade earlier.[1] By elucidating the specific changes Chekhov made during the revision process—these include reducing the cast from almost two dozen down to nine, changing the climactic suicide of The Wood Demon into the famous failed homicide of Uncle Vanya, and altering the original happy ending into an ambiguous, less final resolution—critics such as Donald Rayfield, Richard Gilman, and Eric Bentley have sought to chart the development of Chekhov's dramaturgical method through the 1890s.
Rayfield cites recent scholarship suggesting Chekhov revised The Wood Demon during his trip to the island of Sakhalin, a prison colony in Eastern Russia, in 1891.