ABC list of holidays

Can anyone fill in the blanks?
Or suggest better ones.
I've always wanted an ABC list of holidays.

Does anyone else remember these?

Holidays

April Fool's Day
Birthday
Cinco de Mayo
Day of the Dead
Easter
Fourth of July
Grandparent's Day
Halloween
Ides of March
Juneteenth
Martin Luther King Jr's Birthday
Labor Day
Memorial Day
New Year's Day (see below - might need something else for N)
Ostara - Spring Equinox
St. Patrick's Day
Q
Rosh Hashanah
Summer Solstice
Thanksgiving
U
Veteran's Day
Winter Solstice
Xmas 
New Years Day (see above - might need something else for Y)
Z