Anatomical humans have been around at least 300,000 years they say. That's approximately 12,000 generations. The pyramids and Stonehenge were built 200 generations ago. Jesus lived about 80 generations ago. Imagine mankind existing 11,920 generations before God decided to send his son down to reason with us. That fact is hard to swallow. WTF did we do for 11,920 generations that is now considered irrelevant? That's a sad commentary on mankind.
Our calendar is about the same age as Jesus so New Years Eve was invented about 80 generations ago. The observable NYE for 11,920 generations of our ancestors existence would've been the winter solstice, the shortest day of the year. From that point on the sun begins to rise higher and higher and the day gets longer and longer. For three months everyone would observe the day growing longer until the length of day and night were equal hence the Spring equinox. For another 3 months the sunlight would continue to grow until it reached the summer Solstice or the longest day of the year. That would take half the year. Then the day would begin to die for 3 months until day and night would again reach the equilibrium of the Fall equinox. Then continue to die off into winter toward the winter solstice. Finally reaching the shortest day of the year again completing the solar year.
This would have been observable for over 300,000 years, before anatomical humans even existed. The arbitrary date of December 31 would have been meaningless to 11,920 generations of your ancestors. So if NYE doesn't impress you, you can rest assured you're not alone. Modern humanity has been separated from the constants of mankind's evolution like the solstices and the constellations in the night sky, and it has been replaced with New Years Eve and electric street lights. How could this not misguided us as a species? To forget what 11,920 generations held sacred.
What really blows my mind is that in the southern hemisphere not only do the constellations appear upside down but the solstices and equinoxes are opposite as well. So while we in the US just passed the winter solstice and the shortest day of our year, my friends in Chile were experiencing the summer solstice or longest day of their year. The longest and shortest day of the year both existing at the same moment in time.