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

Other days

kale

Kale Day
first love

First Love Day
prosecco

Prosecco Day
lash

Lash Day
polyamory

Polyamory Day
cuddle up

Cuddle Up Day
believe

Believe Day
ruby

Ruby Day
lumpy rug

Lumpy Rug Day
ask out your crush

Ask Out Your Crush Day