Happy new year, and happy public domain day! :) Here's background on some of the works that enter the public domain as of today in Canada and the EU - and how decades worth of public domain works were stolen from the public by the United States Congress:

https://law.duke.edu/cspd/publicdomainday/

(Unlike the authors, I oppose copyright and patents on principle, but retroactive copyright term extension is particularly illustrative of the damaging effects of intellectual monopoly rights.)