Happy New Year! It's the anniversary of the destruction of the One Ring and the fall of Sauron, and thenceforth is celebrated as the New Year in western Middle-earth.
Relive the day in my real-time LotR thread: https://bananachips.club/@nev/105951061412685611 (note: you'll have to put it in your mastodon client's search bar, just clicking on it won't work)
In real life, it's Lady Day, the anniversary of the Annunciation; in England this was New Year's Day from the Middle Ages until well into the eighteenth century. (More here: https://www.medievalists.net/2015/12/celebrating-the-new-year-medieval-style/)