Oops, it doesn't look like 'lead drops over half a point in one day' is a national day..

Other days

first love

First Love Day
artists

Artists Day
stress awareness

Stress Awareness Day
lost sock memorial

Lost Sock Memorial Day
ruby

Ruby Day
mean girls

Mean Girls Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
boyfriend

Boyfriend Day
carpenters

Carpenters Day
self appreciation

Self Appreciation Day