RFP: XML format for timelines

I'd like to see a simple XML format to express timelines with events on them, and a few tools to create this XML, turn them into Flash, HTML and such. The format should allow for merging timelines.

(Just some ideas:) A timeline exists of a StartingPoint, an EndPoint, and Events in between. Each Event is optionally identified by one or more URI's (for merging), has a required StartingPoint (datetime) and an optional EndPoint (datetime, for events that happen over time). Events can be nested within events. Each event can have a URL (semantics: where to go when user clicks on event), a title, a description and an image.

We should be able to express things like conferences, or a personal timeline in this format.

The format should allow merging: time is universal. The events can be merged based on having at least one URL that's the same. We should be able to merge your description of a conference (with your blog entries as events for example) with my description of the same conference.

Anyone interested in working out such a format?

# Nov 26, 2003