Continuing our pivot to fashion.
From History Today:
The First Flying Trapeze
The circus act was first performed on 12 November 1859.
The circus act was first performed on 12 November 1859.
Jules Léotard, the French acrobat who performed the first flying trapeze act on record at the Cirque Napoléon in Paris in 1859, was the daring young man who ‘flies through the air with the greatest of ease’ in the music hall song. He also left his name to the leotard, the tight, sleeveless garment which he wore and which showed his muscular frame to advantage....
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And at Circuses and Sideshows:

If interested (and who wouldn't be?), see also November 11's:
As The Blog Continues Its Pivot To Fashion Coverage: A Look At How We Got Here