Okay, so I didn’t know this was a thing, but I found out there is a National Fossil DayTM here in the States. It’s the Wednesday of Earth Science Week in October.
Now that is my kind of holiday. The idea behind it is to show how much we can learn about the past (and possibly predict about the future) from fossils and the need to understand and preserve them.
The National Park Service has some great art and articles as well as a list of related events-check to see if there’s anything going on in your area!