World History is a user contributed history site. The site features a Google Maps based historical browser that lets you explore the World's history by timeline and by location.
Users of the site can add historical information and World History has also aggregated historical data from sites like Wikipedia. It is possible to search the map by location, date and by category. The categories are 'people', 'places', 'events' and 'artifacts'.
The results of a search are displayed on the map. If you open an information window you can read the historical entry directly from the map.