Thanks King David. The verse states;
…ה’ יספר בכתוב עמים“The Lord shall record, in the registry of peoples…”
When Adam noticed the day diminishing, he said, “Is the world becoming darker because of
my sins, will it soon return to its unformed state and, so, is this the mortality that the
heavens have levied upon me?” He prayed and fasted for eight days. This was during the
period of Tevet so soon the days grew longer. He then realized, “This is the way of the
world.” Adam then chose to feast for eight days.” (Avoda Zara 8a)