In the selichot service, we have a prayer which lists the historic times when Hashem answered prayers (even implicit ones). The "mi she'ana" prayer starts with Avraham on Har Hamoriah and moves forward in time until the story of Purim and then the catch all "kol hatzaddikim..."
According to the Artscroll commentary, the prayer is centered around 7 historical events but has been expanded to the current list of 20. But among the various miraculous events, the entire story of Channukah is not found.
Why would the story of Channukah not merit inclusion in the expanded form? I know that it is beyond the scope in terms of time, but was there an established "closing" date for the writing of this piece? Is it because the story is not biblically canonical?
I know that there are too many miracles for each to be mentioned, but Channukah has a position in our yearly celebrations and is a miracle (be it of oil, or military might) which we commemorate. Why is it absent from this litany?