Multiple realities
(covers information from several alternate timelines)
Terran performing aerial silks
Aerial silks was a performance art involving acrobatics performed while suspended from a length of fabric.
In an alternate 2255 in the mirror universe, a performance celebrating the life of Terran Emperor Philippa Georgiou on the ISS Discovery began with dancers using aerial silks to descend to the stage. (DIS: "Terra Firma, Part 1")
In 2381, Barnes signed up for aerial silks on the USS Cerritos. (LD: "Trusted Sources")