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I know this might not look too flashy, but this might be my favourite stamp sheet. These Estonian stamps are a language tree of the Uralic languages.
Going anti-clockwise from the bottom middle stamp, we have:
The Samoyedic Languages: Nenets, Enets, Nganasan, Selkup, and Kamasin
The Ugric Languages: Hungarian, Khanty and Mansi
The Permic Languages: Komi and Udmurt
The Mari and Mordvinic (Erzya and Moksha) Languages
The Sami Languages (Nortern, Southern, Skolt, Inari, Lule, Ume, Pite, Ter and Kildin Sami)
The Baltic-Finnic Languages: Veps, Karelian, Izhorian, Livonian, Finnish, Estonian and Votic
Languages in brackets weren't mentioned in the stamp, but I thought I'd elaborate anyway
Edit: put Ingrian instead of Izhorian. Should've known better, sorry
Languages of the world
Selkup (шӧльӄумыт әты)
Basic facts
Number of native speakers: 1,000
Spoken in: Russia
Script: Cyrillic, 41 letters
Grammatical cases: 13
Linguistic typology: agglutinative, SOV
Language family: Uralic, Samoyedic, Core Samoyedic, Kamas-Selkup
Number of dialects: 3 main groups
History
19th century - creation of a Cyrillic alphabet to write Selkup
1930s - Selkup is written using the Latin script
1980s - new Cyrillic alphabet
Writing system and pronunciation
These are the letters that make up the script: а ӓ б в г д е ә ё ж з и і й к ӄ л м н ӈ о ө ӧ п р с т у ӱ ф х ц ч ш щ ъ ы ь э ю я.
There is no fixed stress, but the longest vowel to the right of the word is generally stressed.
Grammar
Nouns have three numbers (singular, dual, and plural) and thirteen cases (nominative, accusative, genitive, instrumental, caritive, translative, coordinative, dative-allative, illative, locative, elative, prolative, and vocative). Animateness and possession are also marked.
Adjectives and numerals precede the noun.
Verbs are conjugated for tense, mood, aspect, voice, person, and number.
Dialects
There are three dialect groups: Northern, Middle, and Southern. Dialects form a dialect continuum whose ends are not mutually intelligible.
Northern Selkup is the basis for the written language.
Semirandom Uralic vocabulary of the day: some homophones in Proto-Selkup resulting from various word-internal consonant vocalizations and partly also from the general Samoyedic merger *s > *t (as vaguely gestured at here by Finnish and Hungarian cognates, which happen to exist for an above-average number of these)
A. */tuː/ 1) 'feather' (~ Fi. sulka, Hu. toll) 2) 'to row' (~ Fi. soutaa) 3) 'to close' 4) 'to carry' (? ~ Fi. taluttaa 'to lead (someone on foot)')
B. */tyː/ 1) 'fibre' (~ Fi. syy) 2) 'fire' (~ Fi. tuli; probably ≠ Hu. tűz) 3) 'lung' (~ Fi. dial. tävy, Hu. tüdő) 4) 'to step down' 5) 'to come' (~ Fi. tulla, ? Hu. talál 'to find')
C. */tiː/ 1) 'fathom' (Fi. syli, Hu. öl) 2) 'now' 3) 'cloud' 4) 'to fly' 5) 'to dismount (a horse)'
This appears to have been too much to be stable though, and the homophony gets mostly resolved by suffixation or compounding later on. 'To carry' has been attested as a basic root only from the Ob dialect (Central) per the data available to me, while Northern Selkup only has a derivative *tuː-lcə- > /tulɟə-/; Tym (Central) and Ket (Southern) dialects only have *tuː-ntə- > /tunda-/ (both 'to bring'); 'fibre' is attested only in a compound *poːn_tyː 'fibre of tree' — rather parallel to modern Fi. puun syy 'fibre of tree' vs. syy 'cause, reason'; 'lung' is attested only in a compound *tyːj_mektə 'lung-y pile (?)'; 'to fly' is attested only in parallel derivatives *tiː-mpi-, *tiː-lcə-, *tiː-lʈʂə-. The only words that are the same part-of-speech and coexist as such widely across the Selkup varieties seem to be 'fathom' and 'cloud'.
земляная старуха. Тетты имиля
Чёртово озеро. Фильм Андрея Головнёва
Otyken - Lord of Honey