It is my considered judgement that, had it not been for the Russian Revolution, there would very likely have been no National Socialism; probably no Second World War and no decolonization; and certainly no Cold War, which one dominated our lives. I will attempt here to distill the essence of my books The Russian Revolution and Russia Under the Bolshevik Regime by raising the three central questions addressed in those volumes: Why did tsarism fall? Why did the Bolsheviks gain power? Why did Stalin succeed Lenin?' Richard Popes, from Three Whys of the Russian Revolution.Arguably the most important event of the twentieth century, the Russian Revolution changed for ever the course of modern history. Due to the Soviet clampdown on archives regarding the Revolution, many aspects of the event have been shrouded in mystery for over seventy years. However, since the collapse of Communism the archival depositories havebeen thrown open to interested parties.The author of several groundbreaking and controversial works on Russian history, Richard Pipes has written an invaluable book for anyone who wishes to understand the complicated events taking place in Russia today.