More literature is devoted to this era than the rest of Russian history combined. Entire academic institutions were engaged in the "history of the revolution" - in essence, a very short period. Perhaps we can say that the previous volumes of the History of the Russian State were preparations for this. Let's try to understand the reasons for the death of the state. There was - and remains - the hope that if you correctly analyze the history of the disease, then maybe it will be possible to cope with it with the next exacerbation.