The term “genocide” has generated passion and misunderstanding since its coining in 1944 by Ra- phael Lemkin. Applying this term to very heterogeneous historical and current situations brings up many objections and debates. The first problem arising from the word genocide concerns its uses, in- cluding its memorial, humanitarian, legal, and political purposes. Scholars are divided about its meaning. However, this article stresses that the global digital academic enterprise, Online Encyclo- pedia of Mass Violence, represents today a unique effort to gather the most important historical cases of mass human destruction, with respect to their own singularity, while offering a way to com- pare them according to the same framework of analysis. It...