The collective work sums up some of the results of the past century, which will go down in history both for its enormous achievements and successes, as well as for its tragedies and contradictions. The work highlights the clash between democracy and totalitarianism, the impact of two world wars on the fate of humanity, the role of socio-political changes, and its place in the history of the 20th century. religious factor, as well as other features of this turbulent century. A special section is devoted to the development of the main regions of the world - Europe, East, Africa and Latin America; The results of the century for Russia and the USA are considered separately. For historians, political scientists and a wide range of readers.