Families with girls celebrate 3rd of March as a day to wish for their growth and happiness. This family event originally began in medieval times and is also referred to as the Doll's Festival because families of girls display a set of dolls representing the Emperor, Empress, their servants, miniature furniture, and so forth, on a five or seven-tiered stand. Ancient people transferred their sins onto the dolls and threw them in rivers.
I have the big and fine doll set at my grand mather(farmor)'s house which I got from my grand father (morfar) in Kagoshima when I was born. Sadly, it was too big to keep in my small apartment.
People says the dolls should be put away after March 3, otherwise the girl bedcomes late bride. My families were lazy and didn't put them away soon every year :p
お雛さんは早く片付けないと婚期が遅くなると言われますが、そういえばうちは毎年片付けが遅れていたなぁと思いつつ・・・。
Dolls set like mine

I made Chirashi-zushi (a kind of sushi) etc. for celebration.
ハマグリが高かったので、アサリのお吸い物に、菜の花のからし和えは、からしがなかったのでわさび和えになってしまいました(笑)