This book is about the twentieth century, although centuries are of course not real historical units. What happened in the first period of that century definitely started emerging during the last decades of the nineteenth century. The Second Industrial Revolution of that period had its real fruition during the next century. The revolts of the peripheries, the rise of wild nationalist and social conflicts, extremism, proto-fascism, communist ideology were all born at that time. The first chapter of this book on the twentieth century consequently incorporates phenomena from the late nineteenth century. The main historical processes of the twentieth century also did not end in 2000, but continued in the early decades of the twenty-first century. Globalization, globalized deregulation, and speculative, casino-type banking had their painful backlash in 2007–8, the most serious Great Recession that did not end in Europe before the late 2010s. The last chapter of the book thus incorporates the very first decades of the twenty-first century as well.
Looking back over that longer twentieth century, one may imagine Charles Dickens's feelings when he reflected on the bloody ending of the eighteenth century. He opened his 1859 A Tale of Two Cities with the words: “It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness, it was the spring of hope, it was the winter of despair …”
Indeed, as Sir Isaiah Berlin expressed it, the twentieth century was the most horrible century of Western history. Eric Hobsbawm characterizes it as the Age of Extremes, “a sort of triptych or historical sandwich: a quarter of a century of a ‘Golden Age’ between two, equally long periods of catastrophes, decomposition and crisis” (Hobsbawm, 1994: 1, 6). Mark Mazover gave the provocative title Dark Continent to his book on Europe's twentieth century, which “brought new levels of violence into European life, militarizing society … killing millions of people with the help of modern bureaucracies and technologies” (Mazover, 1998: 404).