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

Other days

hoodie

Hoodie Day

nail polish

Nail Polish Day

law

Law Day

fiancee

Fiancee Day

martini

Martini Day

believe

Believe Day

artists

Artists Day

slime

Slime Day

stress awareness

Stress Awareness Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day