[quchen]

Funny, 3-13 are missing here.

  > cal sep 1752
     September 1752     
  Su Mo Tu We Th Fr Sa  
         1  2 14 15 16  
  17 18 19 20 21 22 23  
  24 25 26 27 28 29 30

Edit: Oh, colour me surprised. https://en.wikipedia.org/wiki/September_14

[ghotli]

This was the best thing I learned today