The Greatful Dead started their career playing at Disneyland(according to a film I saw, but couldn't find any info on the web).
They also broke every marketing rule by allowing fan taping and logo sales, controlling their own content, merchandizing and ticket sales, played a different set every night, and sold out every concert.
10 Tie-Died and True Marketing Lessons from the Grateful Dead
The track widths are different in China and Russia, so the axles have to be changed.
John Wilkes Booth's brother saved Abe Lincoln's son from being run over by a train.
Edwin Booth Saved Robert Todd Lincoln's Life