If you are an Oracle Calendar user and you wish to save calendar entries that will be purged from the database read more.
ITS announcement 7/17/07:
On July 31, all Calendar entries prior to July 1, 2005 will be purged from the system as part of the maintenance that is performed on the Calendar database. If there are entries prior to July 1, 2005 that users wish to keep, they can export them from the Calendar server using the export command within the Calendar client.
For user’s convenience click here for directions on how to save your Calendar information.