I saw an amusing article in the NYT which presents a "revisionist" account of the origin of basketball. The claim is that basketball was not really invented by James Naismith in 1891 but a year earlier in Herkimer, New York. There are many of these controversies over "firsts" and over inventions. You will hear similar alternative histories about the Wright brothers and the invention of the airplane. Typically the story will be that someone else supposedly did something slightly earlier. In some cases, crediting a single person as the inventor of something is an oversimplification of what is often a more drawn out evolution.
https://www.nytimes.com/2025/06/17/nyre ... er-ny.html
Given the thin documentation, barring some evidence that Naismith was influenced by this Herkimer game, I am inclined to dismiss this as merely a somewhat similar game that doesn't seem to be a direct progenitor of the modern game.
While I do not find this claim convincing, I do find it useful to think about "revisionism" in "low-stakes" contexts. This is a good check to see how one's approach applies out-of-sample. Hint: if you eagerly latch on to every alternative history or reject all of them out of hand, then you probably have a bad approach. Considering such examples is also a good way to calibrate your baseline expectations. By this I mean that often the disagreements over history are over what level of evidence is to expected in a given situation. We can get a better sense of this is we have considered more examples across a wide range.
I will mention another amusing basketball-related conspiracy theory/revisionist historical claim. This is the suggestion that Wilt Chamberlain's famous 100 point game was a hoax. I am also not persuaded by this one, although I was surprised by how little documentation there is.