Krupskaya was a Russian revolutionary and educator who was a Marxist agitator in the years leading up to the Russian Revolution. She married Bolshevik founder Vladimir Lenin in 1898, while both were serving terms in exile. After the Revolution, she joined the People’s Commissariat of Education and helped develop educational systems that offered both academic and professional training to women and workers. Her biography is known as the most detailed account of Lenin’s life but omits what events? Discuss