Fireworks have been astounding audience across the globe for centuries, and the earliest documentation of fireworks dates back to 7th century China, where they were invented more than 2000 years ago. The fireworks are used to accompany many festivities and celebrations to promote prosperity, scare off evil spirits, or simply for fun. Fireworks are not only lights and a big boom, in Zurich on New Year's Eve 2002 was launched the largest chocolate firework contained 135 pounds of chocolate candies. Early US settlers brought their love of fireworks with them to the New World and fireworks have become a tradition since the very first Independence Day and are often used for other celebrations like New Year or Christmas. A holiday custom progress bar for YouTube with Fireworks.