Paris point

From HandWiki
Paris point
Unit ofLength
SymbolParis point 
Conversions
1 Paris point in ...... is equal to ...
   SI units   23 cm
   Imperial and US customary   0.262 in

The Paris point is a unit of length defined as 23 centimetre (6.67 mm; 0.262 in). It is commonly used for shoe sizes in Continental Europe.

The unit was invented by French shoemakers in the early 1800s.[1] Its origin probably lies in ​23 centimetre being very close to ​14 inch; a French inch pouce-roi is around 27 mm, a quarter of that is 6.7 mm, close to 6.6 mm defined for the Paris point.[2]

See also

References

  1. Kindtler-Nielsen, Bue, ed (2019). "Varifrån kommer skonumren?" (in sv). Världens Historia (Bonnier Publications International) (2): 71. ISSN 0806-4709. 
  2. Drevet, Louis. "Une petite histoire des poids et mesures" (in fr). http://www.pesagefacile.com/xnews/news.articles.5/UNE-PETITE-HISTOIRE-DES-POIDS-ET-MESURES--Louis-DREVET.html. Retrieved 18 August 2011.