Here's a neat Javascript library developed by the folks at SIMILE: Timeplot. Timeplot takes the same input format as Timeline (think of Google Maps for time events) and produces interactive graphs.

Here's a few screenshots (with links to the examples):

As mentioned before, I think the Timeline Javascript should be Initializable. And since I see the need, who better to do it than I?

I've attached a new version of timeline-api.js to this posting. It has an initialization function that one can pass in a urlPrefix parameter (and hopefully more if the SIMILE folks pick it up):

<script type="text/javascript" src="http://www.example.com/timeline-api.js">
<script type="text/javascript">
Timeline.Initialize({
    urlPrefix : "http://simile.mit.edu/timeline/api/"
})
</script>
 

Here's a pretty cool widget:

Timeline is a DHTML-based AJAXy widget for visualizing time-based events. It is like Google Maps for time-based information. Below is a live example that you can play with. Pan the timeline by dragging it horizontally.

Since we've already got the concept of a "Calendar of Events" (example), look forward to an implementation here on BlogMatrix soon!