The original post says:
Today is the 20th anniversary of the launch of TravellerMap.
Since I’m lazy, go read the 10th anniversary post for some history.
https://travellermap.blogspot.com/2025/04/and-now-were-20.html
EDIT: And if you haven’t heard about TravellerMap, you’re in for a treat: http://travellermap.com/
I saw this post and went browsing through the android app on my phone. Learned about some minor sophont races and some wild cultures. Such a monumental amount of information.