The second document, uploaded a day later by the same Internet Archive user, is even more fascinating. It’s an enormous, 388-page transcription of all the speeches, panels, etc. at the 1976 IAAPA Convention , an industry event for those in the business of operating amusement parks.

Buried in the middle of the document, after dozens of interminable pages about the science of selling hot dogs and the benefits of making deals with bus tour companies, is a panel discussion about arcade games. A handful of arcade operators and distributors make up the bulk of the panel participants, but they’re joined by then-President of Atari Joe Keenan. Remarkably, the panel was originally supposed to include the legendary Nolan Bushnell instead of Keenan, but he was evidently away on business at the time of the convention.