It's a day that actually goes with the assigned letter!
Look Up at the Sky Day
The way to celebrate this holiday is as self-explanatory as it gets.
But if, for some reason, you can't get outside, or even get to a window, here's another holiday going on:
Pan-Americanism. the idea or advocacy of a political alliance or union of all the countries of North, Central, and South America. a movement for or the idea or advocacy of close economic, cultural, and military cooperation among the Pan-American countries.Dictionary.com
What's your favorite food from a Pan-American country that you don't live in?