In the book “Secrets of the past century. Sensations. Anti-sensation. Super Sensations" Nikolai Zenkovich continues his documentary investigation of many mysterious events of the 20th century. The materials of the “Special Folder” of the Politburo of the CPSU Central Committee gave the author the opportunity to take a different look at the recently seemingly unshakable ideologies. 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 to the promotion of Pavlik Morozov’s feat, who stood behind the uprising in Budapest in 1956 and behind the State Emergency Committee in 1991, why Khrushchev hid the fact of working on his memoirs, and Yeltsin hid his father’s prison past, what actually motivated Captain 3rd Rank Sablin, who rebelled on the large anti-submarine ship Storozhevoy ”, and KGB General Kalugin, who spoke out against his department, whether there were popular uprisings in the USSR - the interpretation of these and other topics will undoubtedly cause ambiguous judgment among readers. Most of the facts given in the book have not been published anywhere.