Use the dropdown arrow on the Calendar menu to view details of the Feast Days. The Solar Calendar is also detailed and explained.
Chislev 25 is the Feast of Dedication. Hanukkah.
Hanukkah is a dedication to Yahweh in memorial of the miracle of the oil burning lamps of the temple.
During the Maccabean era, after the temple was retaken from Antiochus Epiphanes, there was only enough oil in the lamps to burn for one day. Yahweh made them burn for eight days while they made more oil.
Hanukkah is a Judahite dedication.
Hanukkah is NOT a Jewish holiday.
Purim is a Judahite dedication. The book of Esther reveals the details.