|Class X - Wikisource
Subclass Y - Years
Index of works and other pages related to the year 1923.
From this year until the end of 1963, the copyright on works published in the period could be extended if they were renewed 28 years after publication. If there was no renewal, the works entered the public domain. If there was a renewal, the works are still under copyright.
All works published prior to 1923 are in the public domain.