There used to be a little calendar that appeared when I hit the little top button on the mouse.
Where did it go?
How can I add things to the dashboard?
Check your mouse settings in System Preferences > Mouse
You can add widgets to your Dashboard from here > Mac 101: Dashboard
Apple - Downloads - Dashboard
the mouse top button is set to dashboard.
The language translator and calculator still appear but the calendar has evaporated since upgrading to Snow Leopard.
You can re download widgets from here > http://www.apple.com/downloads/dashboard/
I found myself in the same situation once. The answer you're looking for is the Calendar widget was renamed to iCal.wdgt in Snow Leopard.
Do you have a backup you could restore the widgit from?
Retrieving data ...