Volga Finns
The Volga Finns (sometimes referred to as Eastern Finns) are a historical group of indigenous peoples of Russia living in the vicinity of the Volga, who speak Uralic languages. Their modern representatives are the Mari people, the Erzya and the Moksha Mordvins, as well as speakers of the extinct Merya, Muromian and Meshchera languages. The Permians are sometimes also grouped as Volga Finns. The modern representatives of Volga Finns live in the basins of the Sura and Moksha rivers, as well as (in smaller numbers) in the interfluve between the Volga and the Belaya rivers. The Mari language  has two dialects, the Meadow Mari and the Hill Mari. Traditionally the Mari and the Mordvinic languages (Erzya and Moksha) were considered to form a "Volga-Finnic" or "Volgaic" group within the Uralic language family, accepted by linguists like Robert Austerlitz (1968), Aurélien Sauvageot & Karl Heinrich Menges (1973) and Harald Haarmann (1974), but rejected by others like Björn Collinder (1965) and Robert Thomas Harms (1974). This grouping has also been criticized by Salminen (2002), who suggests it may be simply a geographic, not a phylogenetic, group. Terminology. The Volga Finns are not to be confused with the Finns. The term  is a back-derivation from the linguistic term "Volga-Finnic", which in turn reflects an older usage of the term "Finnic", applying to most or the whole of the Finno-Permic group, while the group nowadays known as Finnic were referred to as "Baltic-Finnic". Mari. The Mari or "Cheremis" (, Tatar "Çirmeş") have traditionally lived along the Volga and Kama rivers in Russia. The majority of Maris today live in the Mari El Republic, with significant populations in the Tatarstan and Bashkortostan republics. The Mari people consists of three different groups: the Meadow Mari, who live along the left bank  of the Volga, the Mountain Mari, who live along the right bank of the Volga, and Eastern Mari, who live in the Bashkortostan republic. In the 2002 Russian census, 604,298 people identified themselves as "Mari," with 18,515 of those specifying that they were Mountain Mari and 56,119 as Eastern Mari. Almost 60% of Mari lived in rural areas. Merya. The Merya people (; also "Merä") inhabited a territory corresponding roughly to the present-day area of the Golden Ring or Zalesye regions of Russia, including the modern-day Moscow, Yaroslavl, Kostroma, Ivanovo, and Vladimir oblasts. In the 6th century Jordanes mentioned  them briefly (as Merens); later the "Primary Chronicle" described them in more detail. Soviet archaeologists believed that the capital of the Merya was Sarskoe Gorodishche near the bank of the Nero Lake to the south of Rostov. It is likely that they were peacefully assimilated by the East Slavs after their territory became incorporated into Kievan Rus' in the 10th century. One hypothesis classifies the Merya as a western branch of the Mari people rather than as a separate tribe. Their ethnonyms are basically identical, "Merya" being a Russian transcription of the Mari self-designation, "Мäрӹ (Märӛ)". The unattested Merya  language is traditionally assumed to have been a member of the Volga-Finnic group. This view has been challenged: Eugene Helimski supposes that the Merya language was closer to the "northwest" group of Finno-Ugric (Balto-Finnic and Sami), and Gábor Bereczki supposes that the Merya language was a part of the Balto-Finnic group. Some of the inhabitants of several districts of Kostroma and Yaroslavl present themselves as Meryan, although in recent censuses, they were registered as Russians. The modern Merya people have their own websites displaying their flag, coat of arms and national anthem, and participate in discussions  on the subject in Finno-Ugric networks. 2010 saw the release of the film "Ovsyanki" (literal translation: 'The Buntings', English title: "Silent Souls"), based on the novel of the same name, devoted to the imagined life of modern Merya people. In recent years, a new type of social movement, the so-called "Ethnofuturism of Merya", has emerged. It is distributed in the central regions of Russia, for example, in Moscow, Pereslavl-Zalessky, Kostroma, and Plyos. In October 2014, adopted the 50-minute presentation "Merya Language" III Festival of Languages at the University Novgorod. In May 2014 the "New Gallery" in  the city of Ivanovo during the "Night of Museums" opened the art project mater "Volga, Sacrum". The Meryans were stated to have fought with the Bolghars in wars against Tatars. Meshchera. The Meshchera (, Meshchera or , Meshchyora) lived in the territory between the Oka River and the Klyazma river. It was a land of forests, bogs and lakes. The area is still called the Meshchera Lowlands. The first Russian written source which mentions them is the "Tolkovaya Paleya", from the 13th century. They are also mentioned in several later Russian chronicles from the period before the 16th century. This is in  stark contrast to the related tribes Merya and Muroma, which appear to have been assimilated by the East Slavs by the 10th and the 11th centuries. Ivan II, prince of Moscow, wrote in his will, 1358, about the village Meshcherka, which he had bought from the native Meshcherian chieftain Alexander Ukovich. The village appears to have been converted to the Christian Orthodox faith and to have been a vassal of Muscovy. The "Meschiera" (along with "Mordua", "Sibir", and a few other harder-to-interpret groups) are mentioned in the "Province of Russia" on the Venetian Fra Mauro Map (ca. 1450 ). Several documents mention the Meshchera concerning the Kazan campaign by Ivan the Terrible in the 16th century. These accounts concern a state of Meshchera (known under a tentative name of Temnikov Meshchera, after its central town of Temnikov) which had been assimilated by the Mordvins and the Tatars. Prince A. M. Kurbsky wrote that the Mordvin language was spoken in the lands of the Meshchera. In the village of Zhabki (Egorievsk district, Moscow Oblast), Meshchera burial sites were found in 1870. Women's bronze decorations identified as Finno-Ugric were found and dated to the 5th to 8th centuries. Very  similar finds soon appeared in the Ryazan Oblast and the Vladimir Oblast, enabling archaeologists to establish what characterized the material culture of the Meshchera. 12 such sites were found from the Moskva River, along the Oka River to the town Kasimov. The general opinion is nowadays, that the Oka-Ryazan culture is identical to that of the Meshchera. The graves of women have yielded objects typical of the Volga Finns, of the 4th to 7th centuries, consisting of rings, jingling pendants, buckles and torcs. A specific feature was round breast plates with a characteristic ornamentation. Some of the graves contained  well-preserved copper oxides of the decorations with long black hair locked into small bells into which were woven pendants. In the Oka River valley, the Meshchera culture appears to have disappeared by the 11th century. In the marshy north, they appear to have stayed and to have been converted into the Orthodox faith. The Meshchera nobility appears to have been converted and assimilated by the 13th century, but the common Meshchera huntsman and fisherman may have kept elements of their language and beliefs for a longer period. In the 16th century, the St Nicholas monastery was founded in Radovitsky  in order to convert the remaining Meshchera pagans. The princely family Mestchersky in Russia derives its nobility from having originally been native rulers of some of these Finnic tribes. The Meshchera language is unattested, and theories on its affiliation remain speculative. Some linguists think that it might have been a dialect of Mordvinic, while Pauli Rahkonen has suggested on the basis of toponymic evidence that it was a Permic or closely related language. Rahkonen's speculation has been criticized by other scientists, such as by the Russian Uralist Vladimir Napolskikh. Some toponyms which Rahkonen suggested as Permic are the hydronyms  stems: Un-, Ič-, ul and Vil-, which can be compared to Udmurt uno 'big', iči 'little', vi̮l 'upper' and ulo 'lower'. Rahkonen also theorized the name Meshchera itself could be a Permic word, and its cognate be Komi mösör 'isthmus'. It is hypotized that some Mescheras converted to Islam and assimilated to Mišar Tatars Mordvins. The Mordvins (also "Mordva", "Mordvinians") remain one of the larger indigenous peoples of Russia. They consist of two major subgroups, the Erzya and Moksha, besides the smaller subgroups of the "Qaratay", "Teryukhan" and "Tengushev" (or "Shoksha") Mordvins who have become fully Russified or Turkified during  the 19th to 20th centuries. Less than one third of Mordvins live in the autonomous republic of Mordovia, Russian Federation, in the basin of the Volga River. The Erzya Mordvins (, "Erzyat"; also "Erzia", "Erza"), who speak Erzya, and the Moksha Mordvins (, "Mokshet"), who speak Moksha, are the two major groups. The Qaratay Mordvins live in Kama Tamağı District of Tatarstan, and have shifted to speaking Tatar, albeit with a large proportion of Mordvin vocabulary (substratum). The Teryukhan, living in the Nizhny Novgorod Oblast of Russia, switched to Russian in the 19th century. The Teryukhans recognize the term "Mordva" as pertaining  to themselves, whereas the Qaratay also call themselves "Muksha". The Tengushev Mordvins live in southern Mordovia and are a transitional group between Moksha and Erzya. The western Erzyans are also called "Shoksha" (or "Shoksho"). They are isolated from the bulk of the Erzyans, and their dialect/language has been influenced by the Mokshan dialects. Muroma. The Muromians () lived in the Oka River basin. They are mentioned in the Primary Chronicle. The old town of Murom still bears their name. The Muromians paid tribute to the Rus' princes and, like the neighbouring Merya tribe, were assimilated by the East Slavs in  the 11th to 12th century as their territory was incorporated into the Kievan Rus'. The Muromian language is unattested, but is assumed to have been Uralic, and has frequently been placed in the Volga-Finnic category. A. K. Matveyev identified the toponymic area upon Lower Oka and Lower Klyazma, which corresponds with Muroma. According to the toponymy, the Muroma language was close to the Merya language. A few words have been reconstructed in the Muroma language, based on toponyms, such as: "*juga" 'river', "*vi̮ksa" ‘river connecting two bodies of water', and "*voht(V)" ‘neck of land between two bodies of water ’. Permians. The Udmurts, although part of the Permians, the speakers of Permic languages, are sometimes considered to belong in the Volga Finnic group of peoples, because their homeland lies in the northern part of the Volga River basin.