When we recite the Hanukkah blessings, we say: ...... "SheAsa Nisim LaAvoteinu"...... Nisim are miracles ~ there were 2 Hannukah miracles. One was the military victory of the few Maccabees over the mighty Greek army. The second miracle was that the small pitcher of oil lasted for 8 days and nights.
In Kitah Bet we learn about the miracles through stories and songs. Watch us learning & singing about the military victory נס המלחמה and the miracle of the oil נס פך השמן.