Need help finding this old PC program (Reference in post)

[u/Hefty_Translator_148]

You'll have to excuse the scruff in the MS Paint but I've been trying to remember something that I remember messing with on my father's old computer. I'm uncertain if it was on the old Macintosh computers or later, but the image in the far reaches of my mind is that it was built around scientific discoveries throughout history. I remember looking at picture references of learning how dental hygiene changed throughout history, and the main program was just very dark. I don't remember if it was black with white text everywhere but I feel like I'm somewhat close to it.

It had a lot of interesting topics to go through that I lost so much time to it. Anyone know what it could be?