Oops, it doesn't look like 'ChampionshipYep day' is a national day..

Other days

one

One Day
book

Book Day
law

Law Day
lash

Lash Day
tell a fairytale

Tell A Fairytale Day
pumpkin

Pumpkin Day
kiss a ginger

Kiss A Ginger Day
boy friend

Boy Friend Day
first love

First Love Day
offer

Offer Day