Inside a cave, in the center of the town, are etchings telling the legend of Azelf, Mesprit, and Uxie. This is another popular site for Historians as they believe it connects to the civilization they are studying.
The Celestic Town Historical Research Center is a meeting ground for many historians investigating ancient civilisations of their world. As they aren't connected in the same way scientists are, they use this as their point of call.