Historical landmarks, such as wars, coups, and revolutions, seem to arise under unique conditions. Indeed, what seems to distinguish history from the natural and social sciences is its inability to be dissected or generalised in any meaningful way. Yet even complex and large-scale events like the American Revolutionary War and the French Revolution can be broken down into their component parts, and, as Bertrand Roehner and Tony Syme show in this text, these smaller modules are rarely unique to the events they collectively compose. The aim of this book is to analyse clusters of similar "elementary" occurrences that serve as the building blocks of more global events. Making connections between seemingly unrelated case studies, Roehner and Syme apply scientific methodology to the analysis of history. Their book identifies the recurring patterns of behaviour that shape the histories of different countries separated by vast stretches of time and space. Taking advantage of a broad wealth of historical evidence, the authors decipher what may be seen as a kind of genetic code of history.