Practical vexillology

[gfish]

I like flags. The household has quite a few, and we occasionally switches out which one is currently flying, more or less at random. What I want to build is an entire liturgical calendar of flag-relevant events, so they can be switched out every 2-3 weeks (on average).

For example, we have the EU flag to fly during Eurovision. Various pride flags in June, of course. And the UN flag for UN Day (Oct 24). I keep forgetting to buy an Esperanto flag for Zamenhof Day in December. And the French flag for Bastile Day. And NASA (or Apollo program) for July 20.

So I'm turning to you, the internet. What days that have a related flag should we be celebrating? Nothing is too minor, I promise you.

Comments

[jela]

April 4: 404 Day (is that a flag?)
April 5: First Contact Day (Star Trek)
April 12: Day of Human Space flight (so NASA or something)
April 28: Superhero Day (do you have a Wonder Woman flag?)
May 4: Star Wars Day
May 13: pi(e) Day
May 25: Geek Pride Day
June: Pride month

[pie]

404 flag not found, fly nothing.

[vixy]

That should be a flag with a broken image link.