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

Other days

Emoji Day

fiancee

Fiancee Day

slime

Slime Day

brow

Brow Day

bow tie

Bow Tie Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

special education

Special Education Day

hiv awareness

Hiv Awareness Day

book

Book Day

tell ur crush you like them

Tell Ur Crush You Like Them Day