Victory Day, celebrated in midsummer, commemorates the surrender of Aexia; the last kingdom to fall during the Brigardine Conquest. Festivities include a large military procession in Valor and historic reenactments of major battles from the war. The holiday tends to be more popular during times of hardship, though it is not widely celebrated in the southwestern end of the kingdom.
As a side note, I would like to remind everyone of the book giveaway I am holding. I have two free copies of The Clocksmith I will be giving out on January 10th. To enter, all you have to do is Like the post with the full rules, which can be found here: link.