Overview
- Researchers assembled one of the largest quantitative fashion datasets using the Commercial Pattern Archive and modern runway photos spanning roughly 1869 to today.
- Custom tools converted hemline, neckline and waistline positions into numeric time series that showed repeating peaks at about two-decade intervals.
- Hemlines offer the clearest illustration, shifting from short 1920s flapper styles to longer 1950s looks before the miniskirt surge of the late 1960s.
- Since the 1980s, the two-decade signal has weakened as multiple skirt lengths coexist and trend turnover accelerates, reflecting greater style diversity.
- Lead author Emma Zajdela presented the findings at the APS Global Physics Summit in Denver, with coauthor Daniel Abrams highlighting potential applications to other cultural cycles.