Mapping Operation War Diary
Tens of thousands of maps were produced by British forces during the first world war, from large-scale maps for senior commanders needing an overview of an entire front, to much more detailed topographical maps for front-line troops, which allowed them to accurately pinpoint enemy positions and establish the nature of the ground they held.
Many of these maps are preserved in the unit war diaries, with Citizen Historians uncovering more each day. One of the great benefits of tagging the war diaries is that it allows us to continue the mapping work carried out during the war itself, using modern techniques to establish a visual representation of the events of the time and the experiences of the units to whom the diaries belong
Image © IWM (Q 2306)
One way in which we can do this is to use place names, particularly those we can locate on the mapping tool contained within the Place tag, to site events geographically, which is a great way to quickly get an overview of a particular type of activity or event. The link below, for example, will take you to a map produced by Jim O’Donnell of the Zooniverse showing amalgamated unit casualty figures (tags showing 0 casualties have been discarded for this analysis), linked to geographic location and covering the years 1914-1918.
Bear in mind that this data set is derived from the first tranche of completed diaries – a little over 200 units in all. Imagine what the map will look like once we have completed all of the thousands still to be tagged!
Georectification is another exciting way in which mapping tools can add to our understanding of the content of the war diaries. This technique allows us to align first world war maps discovered in the diaries with modern satellite images of the same area. We’ll be doing another blog post soon to cover this and you’ll get to see some excellent examples of just what we can do – give yourself a head start by downloading Google Earth beforehand!