Nearly years ago: Chinese discover crackers by accident. The Chinese burnt bamboo to mark the Lunar New Year. But the air caught in the bamboo shaft expanded and burst. The "popping" sound was the first firecracker, a good way to scare away evil spirits.
Fireworks in Vancouver for the annual Celebration of Lights. "Celebration of Lights 2011 -In Vancouver BC." This was a great experience we got to do a couple of times. Highly recommend it, in the summer. Reflections of fireworks on the water.