Oops, it doesn't look like 'cemetery solemnly waits to see how tang the conqueror will make memorial day' is a national day..

Other days

Appreciate Yaself A Lil Extra Day

Lash Day

Tell Ur Crush You Like Them Day

Lost Sock Memorial Day

One Day

Buddy Day

Embarrass Your Best Friend Day

Artists Day

Nail Polish Day

Ask Out Your Crush Day