Currently Being ModeratedJan 30, 2013 8:59 PM (in response to AdeelM)
Did you setup iCloud?!
I've seen many exchange users "mirate their calendar" to iCloud without even knowing they did it.
Check tour outlook deleted items, as well as your Recovered Deleted Items. The calendar items may be there.
Currently Being ModeratedFeb 4, 2013 12:07 PM (in response to AdeelM)
I was just freaking out about the same thing! Then I found it....
Mail, contacts, calendars:
Scroll on the right down to Calendars:
Default is last 30 days...just set to "all"
Everything came back :-)