Do you know what today(11/11) is in Japan?
Japanese people love playing with the number of dates. For historical and to the most silliest reasons, Japanese people would name a date for a event or a product.
For example today(11/11) is Jewelry Day, Cheese Day, Noodle Day, Soccor Day, Samon Day, Peanut Day, Nishijin Day, ext... I personaly like to think today is Pokii Day (a famous Japanese stick type snack) and for it would be a good reason to buy and eat pokki with my friends.
Does your country also play with dates?