Oops, it doesn't look like 'hero pepper pot day' is a national day..

Other days

tulip

Tulip Day
china

China Day
nail polish

Nail Polish Day
nae nae

Nae Nae Day
bonang

Bonang Day
ask out your crush

Ask Out Your Crush Day
hannah

Hannah Day
lash

Lash Day
lumpy rug

Lumpy Rug Day
promposal

Promposal Day