For Your Scientists/Historians: ChronoZoom
...You can browse through all of history on ChronoZoom to find data in the form of articles, images, video, sound, and other multimedia. ChronoZoom links together a wealth of information that has been curated by experts and enthusiasts to tell important stories from history. By drawing upon the latest discoveries from many different disciplines, you can visualize the temporal relationships between events, trends, and themes. Some of the disciplines that contribute information to ChronoZoom include biology, astronomy, geology, climatology, prehistory, archeology, anthropology, economics, cosmology, natural history, and population and environmental studies...
Navigate by clicking the links at the top of the screen or by clicking the objects in the body of the page.