It’s really just whose discovery spread the fastest. There have been a few instances in history where parallel discoveries happened, but it got named after the guy who got it popularized fastest.

Plus, the records of the civilization that discovered it were lost for a few millenia. But it’s not the first thing that’s been rediscovered a few times.

Unless the “documenter” wasn’t a real person.

The Pythogean Cult is very fun reading.