Ethnic territory of Belarusians () is the territory of compact settlement of Belarusians as an ethnos. The ethnogenesis of Belarusians and their ethnic history are closely tied to this territory. The geographical environment constituting the ethnic territory is not only the living space of the people but also the vital foundation that determines the specifics of their material culture (economic activities, settlement types, spatial contacts) and spiritual culture.
Formation of the ethnic territory in the Grand Duchy of Lithuania Modern Belarusian academic science (Vasil Bandarchyk, Mikhail Pilipenka, Ihar Chakvin, and others) considers that the process of Belarusian ethnogenesis began in the 13th–14th centuries within the Grand Duchy of Lithuania and became distinctly realized in the 14th–15th centuries. The formation of the Belarusian ethnos (in the Pripyat, Upper Neman, Upper Western Dvina, and Upper Dnieper regions) involved a significant portion of East Slavs ("Rus"), certain groups of West Slavs (primarily Poles who mostly settled in Polesia), and non-Slavic ethnic groups, especially Balts (Lithuanians, Yotvingians, Prussians, Samogitians), many of whom were forced migrants to these areas. The East Slavic population formed the mass foundation of the Belarusians, while the non-East Slavic groups acted as an additional component of this new ethnic community.
The modern self-designation "Belarusians" definitively entrenched itself across the entire ethnic territory only from the mid-1860s (and firmly among the broad masses from the 1890s). This creates difficulties in delineating the ethnic territory and demographic indicators in preceding eras.; ; ; ; ; Prior to this, two main self-designations were used: "Ruthenians" (Rusins) and "Lithuanians" (Litvins).
In the 14th–16th centuries in the GDL (and later in the Polish–Lithuanian Commonwealth), alongside the name "Rusins", the self-designation "Litvins" was used in several regions of Belarusian settlement (primarily in the western and southern regions of modern Belarus and eastern regions of modern Lithuania, even applying to the Slavicized Baltic population of those lands). The terms "Rus" primarily denoted the population of the eastern and central regions of modern Belarus and were closely associated with Russian Orthodoxy. A complex hierarchical system of self-designations existed, including polytonyms, toponyms (regional and local names, including urbanonyms), confessionyms, and ethnonyms. It is often difficult to determine whether "Litvins" was understood by speakers as an ethnonym, toponym, confessionym (denoting a Catholic), or polytonym. This led to combined self-identifications (e.g., "Litvins of the Greek faith", "Litvins of Russian descent", "Russian princes of Lithuanian descent", Gente Lithuanus, natione Polonus).; The toponym "White Rus'" and the ethnonym "Belarustsy", which emerged in the late 16th–17th centuries, did not cover the entire Belarusian massif but were local-territorial designations, initially referring primarily to the Polotsk region. Under the influence of the Muscovite State and the Orthodox activists in the Commonwealth, these terms began to be used more widely from the 1630s for the Dvina and Dnieper voivodeships, though they still lagged behind "Rus" and "Rusins". By the 17th century, "Lithuania" and "Litvins" were firmly used to denote the western and central parts of the GDL, remaining in use until the Partitions of Poland and beyond.
A separate position is held by Belarusian historian Igor Marzalyuk, who asserts that an ethnos without a common self-designation is a "nonsense." He disputes that "Litvin" was an ethnic self-designation for Belarusians, arguing that "Rusin" was the sole endoethnonym for all parts of the Old Belarusian ethnos, paralleling Orthodoxy (and later the Uniate church). Marzalyuk associates "Litvins" exclusively with Baltic Lithuanians and Catholicism, viewing it only as a polytonym for Belarusians. He suggests that religious division matched ethnic division (Catholics = Lithuanians; Orthodox = Rusins), denying Baltic participation in Belarusian ethnogenesis.The opinion that in the initial period of the GDL, religious division largely coincided with ethnic division was previously expressed by Polish historian Jerzy Ochmański. Marzalyuk believes that the widespread adoption of the self-designation "Poles" alongside "Litvins" by the nobility in the 17th century meant their inclusion into the Polish ethnos. He proposes reviving the artificial, "cabinet" term "Old Belarusian ethnos" to distinguish Belarusians from Ukrainians in the GDL. However, Marzalyuk also concludes that the creators of the Belarusian-centric historical concept in the 19th century were actually Catholic nobles (e.g., Osip Turchynovich, Ignat Kulakovski, and later writers like Francišak Bahuševič and Yanka Luchyna), not Orthodox peasants.It is notable that the creators of the new Belarusian-language literature in the 19th century were exclusively Catholic nobles (Vintsent Dunin-Martsinkyevich, Francišak Bahuševič, Adam Hurynovich, Yanka Luchyna, Karus Kahanets, Ciotka, etc.), not Orthodox priests or peasants.
Marzalyuk's thesis of a single endoethnonym was challenged by historian Hienadź Sahanovič, who noted that Belarusians belonged to different Christian denominations, hindering a single ethnonym and ethnic consolidation. Historian Ales Smalyanchuk criticized Marzalyuk for taking quotes out of context to prove the ethnic Polishness of the Lithuanian nobility. Furthermore, contrary to Marzalyuk's claim that Catholic populations in Western Belarus and the Vilnius region were purely Baltic Lithuanians who only assimilated in the 19th-20th centuries, ethnologist Mikhail Hrynblat claimed that there was intensive Belarusization of Balts in the 14th–16th centuries. Ihar Chakvin also notes that the Slavicization of the Upper Neman region is confirmed by ancient Slavic toponymy and that Vilnius possessed a large Orthodox population (12 Orthodox churches vs. 6 Catholic churches at the end of the 14th century).
Conceptions during the Russian Empire
Confessional approach
After annexing the lands of the GDL, the Russian imperial administration retained the geographical terminology of the GDL (Samogitia–Lithuania–White Rus). Only the Dnieper and Dvina lands were termed "Belarusian" (forming the Belarusian Governorate-General). The rest of the Belarusian ethnic territory (including the Minsk region) was toponymically called "Lithuania" or "Lithuanian governorates" until the early 1870s. Up to the 1860s, parts of the Vilnius governorate were even officially called "Samogitian uyezds". On December 18, 1842, the predominantly Baltic-speaking uyezds were separated from Vilnius to form the Kovno Governorate, unofficially called "Samogitia".
Following the abolition of the Uniate Church in 1839, the government began using the term "Northwestern Krai" (Northwestern governorates) to emphasize the "Russian" ethnoconfessional character of the region, though informal use of "Lithuania" persisted. From the 1850s, Russia intensively gathered ethnographic material. Driven by the imperial ideology of West Russianism (zapadnorusizm), authorities sought to extend the term "Belorussia" to all territories that were once part of Kievan Rus', even if they were Catholic and currently called "Lithuanian". The forced conversion of Catholics and Uniates to Orthodoxy was accompanied by using religion and language as markers of "Russianness".
In his 1853 work, Adam Kirkor mapped the boundary between the "Slavic" and "Lithuanian" tribes in the Vilnius Governorate based largely on ancient toponymy, placing Vilnius (Vilnius) within the Lithuanian zone. However, Kirkor wrote that Lithuanian was dominant only in the Trakai uyezd, while in others it yielded to the Belarusian language. He noted that Lithuanians were mostly Catholics, and Belarusian speakers were Orthodox (former Uniates).
Similarly, an 1861 Russian General Staff compilation by Captain A. Koreva followed Kirkor's toponymic boundary but also noted that peasants around Vilnius and Trakai spoke Belarusian despite being Catholic. Researchers later noted that in the 1850s, Russian ethnography drew the border purely on confessional lines: Catholic equaled "Lithuanian", and Orthodox equaled Slav, purposefully excluding the Catholic Vilnius region from the Belarusian ethnic territory.
During and after the suppression of the January Uprising (1863–1864), the Russian government published tendentious ethnographic atlases by Aleksandr Rittikh (1863, 1864) and Roderich von Erckert (1864) for propaganda purposes. To prove the "Russianness" of the lands, Orthodox inhabitants were classified as "Russian", and Catholic nobles as "Poles". Erckert and Rittich relied solely on confession, artificially inflating Orthodox numbers.
According to Erckert's atlas, the Belarusian territory covered Mogilev, Vitebsk, part of Vilnius, and Grodno governorates. He divided Belarusians into three groups:
"True Belarusians" (Vitebsk, Mogilev, eastern Minsk, western Smolensk);The term "True Belarusians" was likely used because from 1772 to 1863, Vitebsk and Mogilev governorates were traditionally the only ones toponymically called "Belarusian". "Black Russians" (western Minsk, northern Grodno), noting that they didn't use this name themselves; "Podlasians" (western Grodno).
He categorized southern Grodno and Minsk governorates as "Little Russians" (Ukrainians) based on dialect similarity.
Linguistic approach
Only from the 1880s did language become the primary marker for ethnic identification in the Russian Empire. In 1875, Aleksandr Rittikh compiled the "Ethnographic Map of European Russia" based entirely on the linguistic criterion. The map delineated the Belarusian settlement west and south of Suwałki, along the Narew, Yaselda, and Pripyat rivers, and north/east past Vilnius, Švenčionys, Ludza, Velikiye Luki, west of Vyazma and Mglin. A distinct feature was the inclusion of the Catholic Vilnius region into the Belarusian ethnic territory based on language.
In 1870, the Minsk Governorate was separated from the Vilnius Governorate-General, and soon became toponymically associated with "Belorussia" as well. By the 1890s, the name "Belorussia" firmly extended to Grodno and most of the Vilnius Governorate, aided heavily by linguistic studies by Ivan Nasovich, Pavel Shein, Yevdokim Romanov, and, definitively, by Yefim Karsky's monumental work "Belarusians" (1903, 1908).
Linguistic studies showed similarities in the dialects of peasants across the five Northwestern governorates, extending east to Rzhev and Bryansk in the Smolensk and Chernigov governorates. Karsky's map largely corresponded to the ancient lands of the Krivichs. However, in official imperial ideology, these Belarusian speakers were still considered a branch of the "Triune Russian nation".
The Moscow Dialectological Commission (1915) also mapped these dialects, expanding the Belarusian language area even further into the Chernigov and Kaluga governorates, while classifying Western Polesia as a transitional zone between Belarusian and Ukrainian.
Results of the 1897 Census The Russian Empire census (1897) did not ask about ethnic identity (narodnost), but only about native language and religion. According to the census, those indicating Belarusian as their native language constituted 82.4% in the Mogilev Governorate, 76% in Minsk, 56% in Vilnius, 52.9% in Vitebsk, and 44% in Grodno.
Vilnius Governorate: Belarusian speakers dominated in Vileyka (86.4%), Dzisna (80.7%), Ashmyany (79.6%), and Lida (72.4%) uyezds. In Vilnius uyezd it was 26% (dominating the rural areas around the city), while in the city of Vilnius itself it was 4.3% (where Yiddish at 40% and Polish at 30.1% dominated). Vitebsk Governorate: Drissa (86.2%), Velizh (85.7%), Nevel (84%), Haradok (83.6%), Lepel (82%), Polotsk (73.1%) uyezds.