Well no, the Americans holidays are 99% fake. Thanksgiving wasn’t a thing until presidents proclaimed it.

Christmas is fake because 1) the religious conflict with April and 2) Corporate wanting people to buy stuff during December.

Valentine’s day is another corporate scam to sell stuff that it soon became a thing in Japan too ( but we added white day).

Halloween is the false narrative name for Allhallowtide and lost the original meaning of respect for the dead.

I don’t know any actual holiday Americans ever created that isn’t a national thing or international event.