Hmm, maybe we ought to make a specific box for events. The "war" boxes do not work in this instance, perhaps we could somehow compromise and merge them, making them apply to both events of war and festival events such as this.
EveryDayJoe45– "Only those who dare to fail greatly can ever achieve greatly."--Robert F. Kennedy TALK
This is what I was thinking when I was doing work with something similar earlier.
I've been thinking this through, but is it possible that the Carnival is based on the real world Carnivale? Carnivale includes mask wearing, firework shows, music and entertainment, and a few of the other things listed.