Oops, it doesn't look like 'siblings only child awareness day' is a national day..

Other days

camera

Camera Day
gum

Gum Day
latina equal pay

Latina Equal Pay Day
kiss a brunette

Kiss A Brunette Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
nae nae

Nae Nae Day
martini

Martini Day
hiv awareness

Hiv Awareness Day
self appreciation

Self Appreciation Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day