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

Other days

artists

Artists Day
eat what you want

Eat What You Want Day
kale

Kale Day
aloxolt

Aloxolt Day
youth

Youth Day
singles

Singles Day
hiv awareness

Hiv Awareness Day
unicorn

Unicorn Day
china

China Day
tell a fairytale

Tell A Fairytale Day