אור גדול מאיר הכל לימוד עמיתים - תכנית מנדל מחזור ב
בהקשר של חגי החורף הלא יהודיים הגמרא במסכת עבודה זרה מספרת לנו:

ת"ר לפי שראה אדם הראשון יום שמתמעט והולך אמר אוי לי שמא בשביל שסרחתי עולם חשוך בעדי וחוזר לתוהו ובוהו וזו היא מיתה שנקנסה עלי מן השמים עמד וישב ח' ימים בתענית [ובתפלה] כיון שראה תקופת טבת וראה יום שמאריך והולך אמר מנהגו של עולם הוא הלך ועשה שמונה ימים טובים לשנה האחרת עשאן לאלו ולאלו ימים טובים הוא קבעם לשם שמים והם קבעום לשם עבודת כוכבים

With regard to the dates of these festivals, the Sages taught: When Adam the first man saw that the day was progressively diminishing, as the days become shorter from the autumnal equinox until the winter solstice, he did not yet know that this is a normal phenomenon, and therefore he said: Woe is me; perhaps because I sinned the world is becoming dark around me and will ultimately return to the primordial state of chaos and disorder. And this is the death that was sentenced upon me from Heaven, as it is written: “And to dust shall you return” (Genesis 3:19). He arose and spent eight days in fasting and in prayer. Once he saw that the season of Tevet, i.e., the winter solstice, had arrived, and saw that the day was progressively lengthening after the solstice, he said: Clearly, the days become shorter and then longer, and this is the order of the world. He went and observed a festival for eight days. Upon the next year, he observed both these eight days on which he had fasted on the previous year, and these eight days of his celebration, as days of festivities. He, Adam, established these festivals for the sake of Heaven, but they, the gentiles of later generations, established them for the sake of idol worship.
במסכת שבת, אגב דיון על נרות שבת החכמים מתחילים לדון בחנוכה.

תנו רבנן מצות חנוכה נר איש וביתו והמהדרין נר לכל אחד ואחד והמהדרין מן המהדרין בית שמאי אומרים יום ראשון מדליק שמנה מכאן ואילך פוחת והולך ובית הלל אומרים יום ראשון מדליק אחת מכאן ואילך מוסיף והולך אמר עולא פליגי בה תרי אמוראי במערבא רבי יוסי בר אבין ורבי יוסי בר זבידא חד אמר טעמא דבית שמאי כנגד ימים הנכנסין וטעמא דבית הלל כנגד ימים היוצאין וחד אמר טעמא דבית שמאי כנגד פרי החג וטעמא דבית הלל דמעלין בקדש ואין מורידין אמר רבה בר בר חנה אמר רבי יוחנן שני זקנים היו בצידן אחד עשה כבית שמאי ואחד עשה כדברי בית הלל זה נותן טעם לדבריו כנגד פרי החג וזה נותן טעם לדבריו דמעלין בקדש ואין מורידין תנו רבנן נר חנוכה מצוה להניחה על פתח ביתו מבחוץ אם היה דר בעלייה מניחה בחלון הסמוכה לרשות הרבים ובשעת הסכנה מניחה על שלחנו ודיו אמר רבא צריך נר אחרת להשתמש לאורה ואי איכא מדורה לא צריך ואי אדם חשוב הוא אף על גב דאיכא מדורה צריך נר אחרת: מאי חנוכה דתנו רבנן בכה בכסליו יומי דחנוכה תמניא אינון דלא למספד בהון ודלא להתענות בהון שכשנכנסו יוונים להיכל טמאו כל השמנים שבהיכל וכשגברה מלכות בית חשמונאי ונצחום בדקו ולא מצאו אלא פך אחד של שמן שהיה מונח בחותמו של כהן גדול ולא היה בו אלא להדליק יום אחד נעשה בו נס והדליקו ממנו שמונה ימים לשנה אחרת קבעום ועשאום ימים טובים בהלל והודאה

The Sages taught in a baraita: The basic mitzva of Hanukkah is each day to have a light kindled by a person, the head of the household, for himself and his household. And the mehadrin, i.e., those who are meticulous in the performance of mitzvot, kindle a light for each and every one in the household. And the mehadrin min hamehadrin, who are even more meticulous, adjust the number of lights daily. Beit Shammai and Beit Hillel disagree as to the nature of that adjustment. Beit Shammai say: On the first day one kindles eight lights and, from there on, gradually decreases the number of lights until, on the last day of Hanukkah, he kindles one light. And Beit Hillel say: On the first day one kindles one light, and from there on, gradually increases the number of lights until, on the last day, he kindles eight lights. Ulla said: There were two amoraim in the West, Eretz Yisrael, who disagreed with regard to this dispute, Rabbi Yosei bar Avin and Rabbi Yosei bar Zevida. One said that the reason for Beit Shammai’s opinion is that the number of lights corresponds to the incoming days, i.e., the future. On the first day, eight days remain in Hanukkah, one kindles eight lights, and on the second day seven days remain, one kindles seven, etc. The reason for Beit Hillel’s opinion is that the number of lights corresponds to the outgoing days. Each day, the number of lights corresponds to the number of the days of Hanukkah that were already observed. And one said that the reason for Beit Shammai’s opinion is that the number of lights corresponds to the bulls of the festival of Sukkot: Thirteen were sacrificed on the first day and each succeeding day one fewer was sacrificed (Numbers 29:12–31). The reason for Beit Hillel’s opinion is that the number of lights is based on the principle: One elevates to a higher level in matters of sanctity and one does not downgrade. Therefore, if the objective is to have the number of lights correspond to the number of days, there is no alternative to increasing their number with the passing of each day. Rabba bar bar Ḥana said that Rabbi Yoḥanan said: There were two Elders in Sidon, and one of them acted in accordance with the opinion of Beit Shammai, and one of them acted in accordance with the opinion of Beit Hillel. Each provided a reason for his actions: One gave a reason for his actions: The number of lights corresponds to the bulls of the Festival. And one gave a reason for his actions: The number of lights is based on the principle: One elevates to a higher level in matters of sanctity and one does not downgrade. The Sages taught in a baraita: It is a mitzva to place the Hanukkah lamp at the entrance to one’s house on the outside, so that all can see it. If he lived upstairs, he places it at the window adjacent to the public domain. And in a time of danger, when the gentiles issued decrees to prohibit kindling lights, he places it on the table and that is sufficient to fulfill his obligation. Rava said: One must kindle another light in addition to the Hanukkah lights in order to use its light, as it is prohibited to use the light of the Hanukkah lights. And if there is a bonfire, he need not light an additional light, as he can use the light of the bonfire. However, if he is an important person, who is unaccustomed to using the light of a bonfire, even though there is a bonfire, he must kindle another light. The Gemara asks: What is Hanukkah, and why are lights kindled on Hanukkah? The Gemara answers: The Sages taught in Megillat Taanit: On the twenty-fifth of Kislev, the days of Hanukkah are eight. One may not eulogize on them and one may not fast on them. What is the reason? When the Greeks entered the Sanctuary they defiled all the oils that were in the Sanctuary by touching them. And when the Hasmonean monarchy overcame them and emerged victorious over them, they searched and found only one cruse of oil that was placed with the seal of the High Priest, undisturbed by the Greeks. And there was sufficient oil there to light the candelabrum for only one day. A miracle occurred and they lit the candelabrum from it eight days. The next year the Sages instituted those days and made them holidays with recitation of hallel and special thanksgiving in prayer and blessings.