What Did Nadezhda Krupskaya Do?

She became chair of the education committee in 1920 and was the deputy education commissar (government minister) from 1929 to 1939. Krupskaya was instrumental in foundation of the Soviet educational system itself. She was also fundamental in the development of Soviet librarianship.

What did Lenin do?

Vladimir Ilyich Ulyanov (22 April [O.S. 10 April] 1870 – 21 January 1924), better known by his alias Lenin, was a Russian revolutionary, politician, and political theorist. He served as the first and founding head of government of Soviet Russia from 1917 to 1924 and of the Soviet Union from 1922 to 1924.

What did Lenin think of Stalin?

As their relationship deteriorated, Lenin dictated increasingly disparaging notes on Stalin in what would become his testament. Lenin criticised Stalin's rude manners, excessive power, ambition and politics, and suggested that Stalin should be removed from the position of General Secretary.