From Facebook Developer Wiki

Description

Prints the specified event name and formats it as a link to the event's page.

Attributes

Required	Name	Type	Description
required	eid	int	Event ID for the event whose name and link you want to retrieve.

Examples

If you're formatting the tag as FBML, you don't need to use a closing tag.

If you're formatting the tag as XFBML for Facebook Connect, you must use a closing tag.