#OTD in 1917.
Luigi Pirandello's drama Right You Are (if you think so) (Così è (se vi pare)) is first performed, in Milan. The play is based on Pirandello's short story La signora Frola e il signor Ponza, suo genero.
https://en.wikipedia.org/wiki/Right_You_Are_(if_you_think_so)
RIGHT YOU ARE (IF YOU THINK SO!) is available at PG:
https://www.gutenberg.org/ebooks/42148
Books by Luigi Pirandello at PG:
https://www.gutenberg.org/ebooks/author/8041