Ta capacité d'interprétation est proche du néant, les conditions de vie au XIX ont retardé les premières règles, pas l'inverse

"Data from skeletal remains suggest that in the Paleolithic woman menarche occurred at an age between 7 and 13 years, early sexual maturation being a trade-off for reduced life expectancy. In the classical, as well as in the medieval years, the age at menarche was generally reported to be at approximately 14 years, with a range from 12 to 15 years. A significant retardation of the age at menarche occurred in the beginning of the modern times, soon after the industrial revolution, due to the deterioration of the living conditions, with most studies reporting menarche to occur at 15-16 years. "

Ça n'a jamais été 17 ans. Moyenne entre 12 et 14 ans au moyen âge.

https://pubmed.ncbi.nlm.nih.gov/26703478/

Je peux pas le poster mais l'article complet est dispo sur sci-hub