Novgorodov spent the winter of 1916–1917 teaching in a
Yakutsk school. His
The Main Problems of Yakut Intelligentsia was published in
Yakutskie Vedomosti newspaper. Novgorodov supported the
February Revolution of 1917. He participated in many meetings and was even elected to the Public Security Committee of
Yakutsk. At the First Free Congress of Yakut Peasants, Novgorodov presented his
IPA-based new Yakut alphabet and spoke about the necessity of publishing the first Yakut primer (in collaboration with V.M. Ionov). The congress supported him, and during spring and summer 1917 Novgorodov, with the help of N. Ye. Afanasyev, remade the primer, which was named
saqalɯ: suruk bicik. This alphabet was not the IPA at all, as some characters were unable to be represented in local presses. In autumn 1917 he returned to
Petrograd to continue his education. In summer 1918 he was contracted as an interpreter to a hydrographic expedition to the
Lena River's delta. However, the
Russian Civil War disturbed his plans. Thus, he ultimately spent 4 months working in Ehirit-Buhachat Aymak of
Irkutsk Governorate. As he studied Mongolian, he fluently spoke
Buryat language and participated in local meetings. In March 1919 he published several articles where he argued for a chair of Yakutology in
Irkutsk University and noted to the similarity of modern Yakut and ancient Turkic, found in
Orkhon inscriptions. Later his theory was verified by other scholars. In September 1919 Novgorodov reached
Yakutsk and joined the
Saqa aymaq cultural society. As the
Kolchak government didn't support his ideas, he was pleased with the return of Soviet power. He became the head of the
Yakutsk Oblast Exploring Department, the head of its linguistic section, a participant of expeditions to the eastern
uluses of
Yakutia, a lecturer of propagandist and pedagogy courses, a head of the committee for Yakut schoolbooks. As the region had a problem with printing-plants, Novgorodov was entrusted to buy in Central Russia in 1920. In 1922 he published the re-written primer,
basta:nnɯ suruk bicik. In the same year, the Yakut language was introduced in schools of
Yakut ASSR. In 1923, the new Yakut font was made in
Petrograd. Another primer,
suruk bicik and a book for reading
a:ʃar kinige were published. This primer was much better than the others and consisted of five parts: fiction, history, geography, medicine and folklore. In 1923–24 the primer was spread all over Yakutia and
likbezy (special schools for illiterates) started their work. As new presses appeared in the republic, it became possible for the local leaders to print their own newspapers and the first of these,
kɯ:m, was published in 1923. Until 1930, when Yakut was switched to
Jaꞑalif, more than 200 books were published in the Novgorodov alphabet, including 30 schoolbooks. A new alphabet gave a major impulse to the development of Yakut culture. In 1922 Novgorodov graduated the university and along with M. K. Ammosov represented Yakutia in
Narkomnats (Peoples' Committee for Nationalities). He participated in the commission for
delimitation of
Yakutia's borders. Also Novgorodov was a deputy of IX Congress of the Soviets, elected by Yakutsk Governorate Congress of the Revolutionary Committee. Semyon Novgorodov died of
uraemia in the prime of his life at February 28, 1924. ==Publishing==