There's so much documentation now that this stuff should survive, but it does makes me wonder if there are legitimate historical events that are universally accepted as mythology because they sound overly farfetched and couldn't be extensively documented in their era.
Me, minutes after reading an official government tweet claiming a graphic showing that our entire solar grid failed to generate any electricity between dusk and dawn proves that solar energy is a catastrophic failure: No emperor could be stupid enough to believe he was wearing clothes he couldn't see.