well ,
i think it's because turns take 2 weeks in fall and spring .
4th -> 18th -> 31st (!?)
quotation from the manual :
"SCALE
Each hex represents about 80 kilometres or 50 miles. Turns vary in length and are
dependant on the time of year.
SEASON TURN LENGTH
Summer 1 week
Fall, Spring 2 weeks
Winter 1 month "
maybe iam wrong - it was just a guess (and a look into the manual )
[ October 25, 2002, 07:59 PM: Message edited by: Dr.No ]