What are examples of modern drama?

I disagree with
the definition of "modern drama" being plays written in the 19th and 20th centuries as
being too broad.

While the word "modern" implies current art work,
the term "modern drama" is frozen into the historical dramatic movement away from
Victorian drama, with its exaggerated and non-realistic characters, to the realistic depictions
of psychological, genuine characters depicted in realistic settings. 

Ibsen's
A Doll's House is often considered the first "modern drama" (see
The idea of the modern in literature and the arts, New York, Horizon Press,
1967) and Chekhov's plays are always held up as models of "Modern Drama."
Post-modernism began after WW I, so "Modern Drama"
flourished between 1800 and 1914.