Yeah, that was my big issue with the sites content. I wanted to find a list of obscure things taught wrong by decade, but all I could track down were a few myths that were shared across many different decades, so it led to the current (and imperfect) result.

I want to try and update the site to be more focused on what you mention - things that were taught and later revised, but the only way I can think to do that so far is track down old textbooks and compare them to what's known now, which I'm not sure the best/most efficient way to do that, or even where to find textbooks by year.

All this to say, hopefully I'll be able to improve the site in due time to make it better represent different facts and whatnot