Oops, it doesn't look like 'theatre as we mark this important day' is a national day..

Other days

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
mean girls

Mean Girls Day
blanket fort

Blanket Fort Day
emoji

Emoji Day
donate your hair

Donate Your Hair Day
ride the wind

Ride The Wind Day
frozen yogurt

Frozen Yogurt Day
promposal

Promposal Day
ask out your crush

Ask Out Your Crush Day
unicorn

Unicorn Day