The British Libraries out of the United Kingdom has a very neat interactive Timeline! With a simple click you can launch an amazing 3-dimensional page. The Timeline includes samplings from literature, sociology, history, everyday life, science, technology, explorers, medicine, and more. The timeline covers events starting at 1210 and goes to the present. With another click, you can zoom from one century to another. Some events even include audio.
There is an option to save your favorite items to your timeline so that you can retrieve an item quickly. I could see using this timeline to enrich a lesson. I can also see students searching the timeline for research and information.