In the book The Secrets of the Bygone Century . Sensation. Anti-Sensation. Nikolay Zenkovich continues documentary investigation of many mysterious events of the 20th century The materials of the Politburo of the Central Committee of the CPSU gave the author an opportunity to take a different look at the recently unshakable ideologues. Was Stalin preparing a preemptive strike on Germany and Yeltsin’s family tree? what happened to the children of prominent figures of the Third Reich and the background of the promotion of the feat of Pavlik Morozov , who was behind the uprising in Budapest in 1956 and the GKChP in 1991, Why Khrushchev hid the fact of working on his memoirs , Yeltsin: The Prison Past of His Father , What Really Moved Captain Sablin of the 3rd Rank , Raised a riot on the large anti-submarine ship "Watch" , and KGB General Kalugin , against his office ,. Was there a popular uprising in the USSR - an interpretation of these and other topics? Definitely , It will make the reader feel differently.