Oops, it doesn't look like 'beatiful girls day' is a national day..

Other days

ruby

Ruby Day
blanket fort

Blanket Fort Day
bow tie

Bow Tie Day
polyamory

Polyamory Day
gum

Gum Day
boba

Boba Day
believe

Believe Day
offer

Offer Day
latina equal pay

Latina Equal Pay Day
artists

Artists Day