#OTD in 1921.
The Hungarian Ferenc Molnár's play Liliom is first produced on Broadway in English. Liliom was a failure in Hungary when it was staged there in 1909, but not when it was staged on Broadway in an English translation by Benjamin Glazer in 1921. It was well known in its own right during the early to mid-20th century, but is best known today as the basis for the Rodgers and Hammerstein 1945 musical Carousel.
Liliom at PG:
https://gutenberg.org/ebooks/48749