It is the birth of America. Freedom from the British... Sorry... Just stating facts... British people went mad with taxes, and so Americans threw out tea into the Boston harbor, and that event became known as the Boston Tea Party. Americans boycotted against the British, and it turned into a full out war. Today, in the seventeen hundreds, the war ended, and Gorge Washington became the first president. And today is known to Americans, as Independence Day.
Oh, well that about sums it up, lol thanks ^.^ It's just I never new, Like I don't know if you celebrate bonfire night (5th November) Not sure if its just a british thing, like the 4th of July and Thanks giving is an American thing