Fireworks and freedom: That’s what America does on the Fourth of July, in celebration of the nation’s birthday on July 4, 1776, when the Declaration of Independence was signed by 56 of our founding fathers. Plus there are a whole lot of hotdogs eaten: 150 million in total, making Independence Day the calendar’s top dog, if you will.
Source: https://wallethub.com/blog/4th-of-july-fun-facts/22075/