Oops, it doesn't look like 'african american museum for martin luther king day' is a national day..

Other days

cursing

Cursing Day
nail polish

Nail Polish Day
get funky

Get Funky Day
chocolate milkshake

Chocolate Milkshake Day
boba

Boba Day
aloxolt

Aloxolt Day
lost sock memorial

Lost Sock Memorial Day
self appreciation

Self Appreciation Day
boy friend

Boy Friend Day
self care

Self Care Day