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

Other days

artists

Artists Day
latina equal pay

Latina Equal Pay Day
blanket fort

Blanket Fort Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
bubble bath

Bubble Bath Day
ask out your crush

Ask Out Your Crush Day
youth

Youth Day
stress awareness

Stress Awareness Day
offer

Offer Day
polyamory

Polyamory Day