How Steel Was Tempered was a novel by Ostrovsky, Russia, which was first published in 1932. The novel mainly tells the story of a young worker, Paul Kochagin, growing up in a small village in the 19th century Soviet Union called the Kazan Republic, to his struggle in the Soviet Union's industrial movement and his experience in the revolutionary war. The main characters in the novel were: - Paul Kochakin: The protagonist of the novel was a young worker born and raised in a small village in the Kazan Republic. He worked hard in the factory and gradually grew up to be an excellent engineer. - Vladimir Ilyich Lenin: The villain in the novel is a capitalist politician and revolutionary. For his own interests, he would stop the Kazan Republic's industrial movement by hook or by crook, which eventually led to the collapse of the Kazan Republic. - Boris Pavlov: An old friend and ally of Vladimir, a wealthy entrepreneur and businessman who helped Vladimir build the foundation of the Kazan Republic. - Nora Sergeyevna: The wife of Vladimir Lenin-I was a smart, kind, and brave woman who played an important role in Vladimir Lenin-I'm sure you'll be able to understand her very well. The plot of the novel mainly included: - The novel was set in a small village in the Kazan Republic. It described the struggle of the people in this small village in the industrial movement and their tenacity and perseverance in the face of difficulties and setbacks. - The novel portrayed the hardships and difficulties of the Soviet Union's industrial movement by describing the friendship and cooperation between Vladimir Pavlov and Vladimir Leninov. - Through describing Paul Kochakin's growth, the novel shows a person's struggle and growth in a difficult environment. - The novel portrayed the courage and wisdom of human beings in the face of difficulties and crises by describing wars and revolutionary struggles. How Steel Was Tempered was a novel about the Soviet Union's industrial movement and revolutionary war. It deeply reflected the social reality and people's lives of that era, and had a profound impact on later literature and artistic works.