January 15th is National Hat Day
There is no evidence of when and how the hat day is started. For kids who are in school, though it is considered a big event, you are not given a holiday. This day is rather celebrated quietly with people coming up wearing different style of hats on them. Everyone chooses a hat which projects the character of the person. Hats are just another kind of head gear which will either make you look good or just makes you look like a nerd (if you don’t choose the right one).