The Chulym Alphabet

Chulym (also Chulym Turkic) is a critically endangered Siberian Turkic language ^[1] spoken along the Chulym River in Tomsk Oblast and southern Krasnoyarsk Krai, Russia. Fewer than 50 elderly speakers remain.

The Chulym people are a small indigenous Siberian group whose traditional economy centred on fishing, hunting, and gathering in the taiga forest along the Chulym River basin. The language has no official status and is transmitted only in small village communities.

Chulym has fewer than 50 fluent speakers ^[1], all elderly, making it one of the most endangered Turkic languages alive. UNESCO classifies it as "critically endangered" — the highest endangerment level before extinction.

The dramatic decline occurred through forced Russification during the Soviet era, when Chulym children were sent to Russian-medium boarding schools. Today, virtually no children or young adults are acquiring Chulym as a first language, making preservation efforts urgent.

The Chulym Cyrillic alphabet has 3 unique letter pairs ^[2] not found in standard Russian: Ö/ö (front rounded ö-vowel, similar to German schön), Ÿ/ÿ (close front rounded ü-vowel, similar to German über), and Ң/ң (velar nasal ng-sound).

These letters reflect the Yenisei Turkic phonological system — the same three unique letters appear in the closely related Khakas language (Republic of Khakassia), confirming the historical link between the two languages despite geographic separation.

Chulym belongs to the Yenisei branch of Siberian Turkic ^[1]. Its closest relatives are Khakas (Republic of Khakassia, ~50,000 speakers) and Shor (Kemerovo Oblast, ~3,000 speakers). Together these form the Yenisei Turkic subgroup.

Siberian Turkic languages are among the most conservative branches of the Turkic family, preserving ancient features. Chulym is distinct from the more numerous Tuvans and Altai people, who belong to separate Siberian Turkic subgroups further south and east.

The Chulym River ^[1] is a major right tributary of the Ob River in western Siberia, Russia. It flows approximately 1,799 km through Krasnoyarsk Krai and Tomsk Oblast before joining the Ob near Kolpashevo.

The Chulym people traditionally lived in small settlements (uluses) along the river banks, relying on the abundant fish populations, particularly sturgeon and salmon. The river's name gives the language its name — a pattern common in indigenous Siberian languages where people are named after their home river.

Chulym had no traditional written form ^[2] before Soviet linguistic documentation in the 20th century. It was purely an oral language for centuries. Russian Orthodox missionaries used standard Russian Cyrillic for limited religious texts in the 19th century, but no standardised writing existed.

The Cyrillic-based Chulym alphabet was developed primarily for academic linguistic documentation rather than for everyday literacy. Unlike Khakas, which received Soviet-era standardisation and school education, Chulym's small speaker population meant it never received a formally standardised orthography or school system.

Chulym and Khakas ^[1] are closely related sister languages within the Yenisei Turkic branch. They share the same three unique Cyrillic letters (Ö, Ÿ, Ң) and show similar vowel harmony patterns, vocabulary, and grammar — reflecting a common ancestral language.

The two languages diverged as their speakers settled in different river valleys: Khakas people in the Minusinsk Basin (upper Yenisei), and Chulym people further north along the Chulym River. Despite their shared ancestry, the languages are not mutually intelligible today due to centuries of separate development.

Chulym has been actively documented ^[2] by linguists, notably through fieldwork conducted in the 2000s and 2010s. Researchers produced grammars, dictionaries, and audio recordings of the remaining speakers — the primary means of preserving knowledge of the language.

International organisations including UNESCO and various linguistics programmes have supported Chulym documentation. However, unlike Khakas — which has schools, media, and official co-official status — Chulym lacks an institutional infrastructure for revival. The community is too small and dispersed for a viable language revitalisation programme.

The ISO 639-3 code for Chulym is clw ^[2] (registered by SIL International). The language is also known as Chulym Turkic, Chulym Tatar, or simply Chulym. It has no ISO 639-1 or ISO 639-2 two-letter code.

The ISO registration distinguishes Chulym from related Siberian Turkic languages. Khakas is classified separately as kjh, Shor as cjs, and Tuvan as tyv. Each received distinct codes reflecting their status as separate languages rather than dialects of a single language.