Kaotik has developed a new module Timeline as a proof of concept. It is based on the work of Simile Widgets.
Some examples: http://www.recovery.gov/?q=content/timeline http://simile-widgets.googlecode.com/svn/timeline/tags/latest/src/webapp/examples/monet/monet.html http://simile-widgets.googlecode.com/svn/timeline/tags/latest/src/webapp/examples/jfk/jfk.html http://simile-widgets.googlecode.com/svn/timeline/tags/latest/src/webapp/examples/test_example2/test_example2.html
He thought that it would be an excellent addition to XOOPS, so he put this together. With enough interest, he might take this further and make it into a full fledged xoops module.