bsd man page for cal

CAL(1)							      General Commands Manual							    CAL(1)

NAME
       cal - print calendar

SYNOPSIS
       cal [ month ] year

DESCRIPTION
       Cal  prints  a  calendar  for  the  specified  year.  If a month is also specified, a calendar just for that month is printed.  Year can be
       between 1 and 9999.  The month is a number between 1 and 12.  The calendar produced is that for England and her colonies.

       Try September 1752.

BUGS
       The year is always considered to start in January even though this is historically naive.
       Beware that `cal 78' refers to the early Christian era, not the 20th century.

7th Edition							  April 29, 1985							    CAL(1)