Special Edition - iCal.
Introduction
Why does the Icon display July 17th?
The answer is that iCal launched on July 17th 2002 at Mac World Expo, New York.
Can you change the Icon?
Yes, check out http://www.oxygen-inc.com/kenx/ for alternative icons.
What is iCal. In it base form iCal is an electronic calendar, with to-do, alarms and anniversary reminders. It can display multiple calendars in one view, each calendar has a user defined colour so you can tell them apart. You can also share your calendar with others and subscribe to other calendars.
Version as of March 2006 is 2.0.3
http://www.apple.com/macosx/features/ical/
Resources.
http://www.icalworld.com, sadly not updated since 2003.
Getting around.
Using Alarms, Scripts & Automator
Using Spotlight & Smart Folders
Sharing Calendars with others
Using Address Book with iCal.
Printing
Calendar add ons
Advanced
To do concepts