For data that has both a time it took place and a location it is nice to be able to view it on a map and on a timeline. A timemap allows you to do this. It can be browsed by panning, or by zooming in or out using the zoom control, on either the map or the timeline.
This timemap that shows the dates of battles in Scotland or involving Scottish troops up until around 1715.
The data is extracted by the ScottishBattlesScraper from Wikipedia in September 2011.
Implementation
The timemap is a MIT timemap version 2.0.1. The map framework is OpenLayers with OpenStreetMap layer. The MIT timemap has been written so that it is simple to port the map to Google Maps or Bing Maps.
The icons are from wikimedia: battle icon.