Traditionalists here are missing the old animated history calendar for the month of December. We are, too.
There is good news to report, though. A group of programmers has been working to build a Flash emulator to play old Flash-based content. The Internet Archive is using their work to preserve old Flash files, and they are also making it available to the rest of us.
They have more work to do to become fully-compatible, but many of the older and simpler projects will work. We’ve just done a test and it appears that the iBrattleboro calendar will work again.
We have a bit of testing and some code to install, but we hope to have it up and running again before long.
The project is called Ruffle an can be found/supported here: https://ruffle.rs