Fireworks

What reason could there possibly be for fireworks in January? Some one set em off what seemed to have been just a block or two away, and I cant figure out WHY? Yes, they were pretty for the 30 seconds that they were going off through the trees but, it's January folks. Other than the 1st African American President - I cannot think of a reason for such celebration. They were not the back yard flickers either, I'm talking Full scale, floor shaking, lightning style fireworks. I live in suburbia, with a house 500 feet away from me that burned to the ground about 5 years ago. Um, what possessed these creatures to light em off? I will have to find out and report back here because this seems like a dangerous adventure.