If you type cal 9 1752
in a Linux terminal you will get strange output. For example:
[max@avi ~]$ cal 9 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
Did you notice the date from 3 to 13 is missing? Why is this so? I am using CentOS 6.2.
Best Answer
It is not a problem, these dates were skipped in September 1752.
Reference: http://en.wikipedia.org/wiki/Gregorian_calendar