Not too many historians amongst DG&P Pruners it seems
We're here, but Cliffs attempt, while worthy, was not a circumnavigation. At least that's what I thought the thread was about.
Circumnavigation Definition - For powered aviation, the course of a round-the-world record must start and finish at the same point and cross all meridians; the course must be at least 36,787.559 kilometres (22,858.729 mi) long (which is the length of the Tropic of Cancer). The course must include set control points at latitudes outside the Arctic and Antarctic circles.
PS And please don't take Cliffs advice, in his book, of hanging a weight from the canopy handle as a secondary source of attitude information.