What a wonderful day the first day of each year is!
On every first Jan, quite a good amount of knowledge gets liberated
i.e. free from copyright and is available for humankind. As the terms
of copyrights on materials (from decades) come to end at the end of
each year, these works get into public domain as a common treasure
leading towards free use and creation.
Indeed first of every Jan is the day to wish a happy new year!