ChronoZoom. At that time ChronoZoom was an impressive interactive timeline of the history of the world. But that's all it was. Recently, I learned that ChronoZoom now allows students and teachers to create their own timelines. Timelines created in ChronoZoom can include multiple layers so that you can see how events and eras overlap. Within each section of your timeline multiple videos, images, and texts can be displayed.
The "zoom" part of the name ChronoZoom comes from the way in which you navigate the timelines by zooming-in and zooming-out on elements of the timeline. In that sense ChronoZoom's display will remind some users of the Prezi interface.
Applications for Education
Project ChronoZoom offers three sample lesson units that teachers can download for free. The units include templates for creating content on ChronoZoom. A tool like ChronoZoom could be great for students to use to create comparisons of what was happening in multiple parts of the world during the same era.