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

Other days

Lumpy Rug Day

Appreciate Yaself A Lil Extra Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Boba Day

Believe Day

Chocolate Milkshake Day

First Love Day

Get Funky Day

Promposal Day

Tulip Day