To add a new event, do the following:
Press the 
button located in the Shortcut bar in Diary mode. The Events dialog box is displayed showing a list of events which have already been defined.
Press the New… button. An Event dialog box is displayed.
Type in a description for the event, for example, "My Birthday". Select an event type from the Type list. Specify a date for the event. If the event will be a repeated event, then the date that you specify represents the first occurrence of this particular event. In this example, the event, "My Birthday", is an annual event. It reoccurs, indefinitely, on the same date every year. Select the Annual Event radio button in the Occurrences page.
By default, all events are personal. To make the event into a public event, which all users will be able to see, select the Access tab and select the public radio button.
Press OK to save your changes.