Oops, it doesn't look like 'nobody really knows and starting to think people are making these day' is a national day..

Other days

Unicorn Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Stress Awareness Day

Embarrass Your Best Friend Day

Slime Day

Cat Girl Day

Polyamory Day

Latina Equal Pay Day

Pampering Day

Hiv Awareness Day