Public Domain Day? Ah, now that is interesting, I didn’t know there was such a celebration. Public Domain Day in the United States is January 1st, and it marks the first day that previously copyrighted works officially legally cede into the public domain. Public Domain Day 2019 was a particularly notable day, with one of the largest public domain releases in about 20 years, due to finally reaching the end of the Sonny Bono Copyright Term Extension Act, which extended the copyright of works published before 1978 to a total of 95 years. Now, 95 years after 1923, we have a whole new swath of public domain works, ripe fruit to be used by creatives of the modern era.
20190824/https://en.wikipedia.org/wiki/Public_Domain_Day
20190824/https://observer.com/2018/12/2019-copyright-works-entering-public-domain/