Aaron linked me to the SIMILE project, which has some really cool stuff. Finding myself with some "me time" today, I decided to play with SIMILE's timeline library. The timeline project allows you to generate a timeline based on data you pass in. For example, here is a screenshot of a timeline from my Tabulas:

You can see my actual timeline at here (Warning: It will take a while to load in your browser).

If you want to generate your own timeline, change the userid variable on that link's URL to your userid.