by Marie Dmitrijevna Mendeleev. At that time, the role changed and Ivan Mendeleev's pupil became the teacher of his last children. Marie Dmitrijevna owned the largest library in Tobolsk, and Yershov soon became close to his teacher's family. It was he who arranged for the Mendeleev's youngest son, Dmitri Ivanovich Mendeleev, to enter the grammar school together with his brother Paul, who was two years older. As the director of the grammar school, he enabled Dmitri to graduate two years earlier. This allowed Marie Dmitrijevna to go to St. Petersburg with the talented Dmitri for the last money left after the glassworks fire and have him enrolled to study at the Main Pedagogical Institute. In return, Dmitri Ivanovich Mendeleev, who had already made a living in St. Petersburg after graduation, helped his teacher Yershov with the reprint of The Little Humpbacked Horse after the release of censorship. In 1862, Pyotr Pavlovich Yershov became the father-in-law of Dmitri Ivanovich Mendeleev, when he married Dmitrije's stepdaughter from his first marriage, Feozva Nikitichna Leshcheva. The help that Yershov provided to the Mendeleev family in Tobolsk during the most difficult times could already be repaid by the famous Professor Mendeleev by supporting his wife's family. Pyotr Yershov did not learn about the divorce, he died in 1869 during a happy relationship. The Humpbacked Horse The Humpbacked Horse or The Little Hunchback (Konyok-Gorbunok), sometimes known in English as The Magic Horse or The Little Magic Horse, is a version of the Golden-Maned Steed fairy-tale character type, with wondrous abilities (e.g., flying). Some scholars see that a large part of the plot of this story is based on Tsarevitch Ivan, the Fire Bird and the Gray Wolf (a tale classified in the Aarne-Thompson-Uther Index as type ATU 550, "Bird, Horse and Princess"). However, the poem shares its name with tale type ATU 531, "The Hunchbacked Horse", of the East Slavic Folktale Catalogue, by Russian folklorist . The titular little horse helps Ivan, a peasant's son, carry out the many unreasonable demands of the Tsar. During his adventures, Ivan captures the beautiful magic firebird for the tsar, keeps his magic horse, and finds his love, Tsar-Maid (Princess). At the end, the princess and the peasant's son live happily for many years after. Censors banned the complete story for over 20 years in the mid-19th century because it made the Tsar appear foolish. Until 1856, the tale was