#OTD in 1921.
The Cervantes Theatre (Buenos Aires) opens with a production of Lope de Vega's La dama boba (The Foolish Lady, 1613). It is one of the earliest examples of the "comedia palatina" subgenre. De Vega completed it on 28 April 1613, as shown by a surviving manuscript copy in his own hand.
https://en.wikipedia.org/wiki/La_dama_boba
Books by Lope Vega at PG:
https://www.gutenberg.org/ebooks/author/25752