Years before the events of Hanukka, the end of Kislev was nevertheless a time of religious observance during the time of Ezra. Dismayed by the high assimilation rates of the Jewish communities returning to Israel, Ezra calls a fast. The twentieth of Kislev and the following days constitute an assembly of teshuva. During the time of the founding of the Second Beit HaMikdash, the period that we know as the dates of Hanukka - were dedicated to national repentance and renewal, an important element of the Hanukka story as well.