Shouldn't every day be Independent Bookstore Day?
Apollo 8, the first manned mission to the moon, entered lunar orbit on Christmas Eve, Dec. 24, 1968. That evening, the astronauts - Commander Frank Borman, Command Module Pilot Jim Lovell, and Lunar Module Pilot William Anders - held a live broadcast from lunar orbit, in which they showed pictures of the Earth and moon as seen from their spacecraft.
Passover, Easter, Earth Day, St. George's Day, Arbor Day - Any and all of these, hope it's a happy one!
By the way, it's also World Spay Day, and, for you Alice fans out there, John Tenniel's birthday!