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

Other days

artists

Artists Day
aloxolt

Aloxolt Day
appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day
hiv awareness

Hiv Awareness Day
prescription drug take back

Prescription Drug Take Back Day
reading

Reading Day
blanket fort

Blanket Fort Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
my little pony

My Little Pony Day
lost sock memorial

Lost Sock Memorial Day