The event contains a piece of information that may be of interest in the future. A day is typically a flow of events and each event is in its own event document. That way the events may be referenced easily by a link.

While the event document my feel like a form at first glance, it is not. All properties (besides name and short description) and sections are - as always with the projectdoc Toolbox - strictly optional. But some of them are very handy to quickly organize events and add references to related information.