According to Franco Moretti, graphs, maps, and trees are the way to go when researching a historical question. Moretti claims that mapping genres and the literary output of specific countries can be invaluable to any historian. So, I tried it out with my own question of Stalin and genocide in the Ukraine during the 1930’s. I can’t really tell what exactly this says about Stalin and genocide, but I can see that he was certainly more popular than genocide, the Ukraine, or the class, kulak, which he invented so he could essentially get away with genocide.
The Google Ngram Viewer seems like it might prove useful to research if you know already know exactly what to look for, and also, if you know in advance the connections you are looking for. I can see it adding another dimension to research–it certainly is thinking outside the box and it offers an interdisciplinary approach to historical questions. I like that.