The book by Elisabeth Heresch, a German historian, author of many books on the history of Russia, contains little-known facts from the life of Alexander Parvus, a businessman and spy who developed and implemented the program of the Russian Revolution of 1917, as a result of which the Bolsheviks led by Lenin came to power .Dates in Russian quotations are given according to the Russian calendar, which was twelve behind the Western calendar, and from 1900 to 1917. - for thirteen days. Often the Western date is also indicated; for events outside Russia, only this is indicated. From January 31, 1918, both calendars became the same.