I think it might help if you tone down the snark just a smidge. And yes, that must have been an extraordinarily productive Saturday! Gary invented three games from scratch and made it down to the copyright office and back in time for supper!So I assume, as a serious scholar, you looked at the copyright registrations submitted by Lowry and Gygax in 1973, right?
Let's see, there was:
1. Alexander the Great (A299083)
2. Chainmail (A299078)
3. Dunkirk (A299082)
All of them have the same date. May 15, 1971.
That was a good Saturday. Wasn't it?