Chukchi Peninsula in the context of "St. Lawrence Island"

Siberia (/saɪˈbɪəriə/ sy-BEER-ee-ə; Russian: Сибирь, romanized: Sibir', IPA: [sʲɪˈbʲirʲ] ), also known as Asian Russia, is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states since the lengthy conquest of Siberia, which began with the fall of the Khanate of Sibir in 1582 and concluded with the annexation of Chukotka in 1778. Siberia is vast and sparsely populated, covering an area of over 13.1 million square kilometres (5,100,000 sq mi) – about three-quarters of Russia's total area, but home to roughly a quarter of Russia's population. Novosibirsk, Krasnoyarsk, and Omsk are the largest cities in the area.

Because Siberia is a geographic and historic concept and not a political entity, there is no single precise definition of its territorial borders. Traditionally, Siberia spans the entire expanse of land from the Ural Mountains to the Pacific Ocean, with the Ural River usually forming the southernmost portion of its western boundary, and includes most of the drainage basin of the Arctic Ocean. It is further defined as stretching from the territories within the Arctic Circle in the north to the northern borders of Kazakhstan, Mongolia, and China in the south, although the hills of north-central Kazakhstan are also commonly included. The Russian government divides the region into three federal districts (groupings of Russian federal subjects), of which only the central one is officially referred to as "Siberian"; the other two are the Ural and Far Eastern federal districts, named for the Ural and Russian Far East regions that correspond respectively to the western and eastern thirds of Siberia in the broader sense.

The Bering Strait (/ˈbɛərɪŋ, ˈbɛrɪŋ/ BAIR-ing, BERR-ing, US also /ˈbɪərɪŋ/ BEER-ing; Russian: Берингов пролив, romanized: Beringov proliv) is a strait between the Pacific and Arctic oceans, separating the Chukchi Peninsula of the Russian Far East from the Seward Peninsula of Alaska. The present Russia–United States maritime boundary is at 168° 58' 37" W longitude, slightly south of the Arctic Circle at about 65° 40' N latitude. The Strait is named after Vitus Bering, a Danish-born Russian explorer.

The Bering Strait has been the subject of the scientific theory that humans migrated from Asia to North America across a land bridge known as Beringia when lower ocean levels – a result of glaciers locking up vast amounts of water – exposed a wide stretch of the sea floor, both at the present strait and in the shallow sea north and south of it. This view of how Paleo-Indians entered America has been the dominant one for several decades and continues to be the most accepted one. Numerous successful crossings without the use of a boat have also been recorded since at least the early 20th century.

Beringia is a prehistoric geographical region, defined as the land and maritime area bounded on the west by the Lena River in Russia; on the east by the Mackenzie River in Canada; on the north by 72° north latitude in the Chukchi Sea; and on the south by the tip of the Kamchatka Peninsula. It includes the Chukchi Sea, the Bering Sea, the Bering Strait, the Chukchi and Kamchatka peninsulas in Russia as well as Alaska in the United States and Yukon in Canada.

The area includes land lying on the North American Plate and Siberian land east of the Chersky Range. At various times, it formed a land bridge referred to as the Bering land bridge or the Bering Strait land bridge that was up to 1,000 km (620 mi) wide at its greatest extent and which covered an area as large as British Columbia and Alberta together, totaling about 1.6 million km (620,000 sq mi), allowing biological dispersal to occur between Asia and North America. Today, the only land that is visible from the central part of the Bering land bridge are the Diomede Islands, the Pribilof Islands of St. Paul and St. George, St. Lawrence Island, St. Matthew Island, and King Island.

Central Alaskan Yupʼik (also rendered Yupik, Central Yupik, or indigenously Yugtun) is one of the languages of the Yupik family, in turn a member of the Eskimo–Aleut language group, spoken in western and southwestern Alaska. Both in ethnic population and in number of speakers, the Central Alaskan Yupik people form the largest group among Alaska Natives. As of 2010 Yupʼik was, after Navajo, the second most spoken aboriginal language in the United States. Yupʼik should not be confused with the related language Central Siberian Yupik spoken in Chukotka and St. Lawrence Island, nor Naukan Yupik likewise spoken in Chukotka.

Yupʼik, like all Eskimo languages, is polysynthetic and uses suffixation as primary means for word formation. There are a great number of derivational suffixes (termed postbases) that are used productively to form these polysynthetic words. Yupʼik has predominantly ergative alignment: case marking follows the ergative pattern for the most part, but verb agreement can follow an ergative or an accusative pattern, depending on grammatical mood. The language grammatically distinguishes three numbers: singular, dual, and plural. There is no marking of grammatical gender in the language, nor are there articles.

Siberian Yupiks, or Yuits (Russian: Юиты), are a Yupik people who reside along the coast of the Chukchi Peninsula in the far northeast of the Russian Federation and on St. Lawrence Island in Alaska. They speak Central Siberian Yupik (also known as Yuit), a Yupik language of the Eskimo–Aleut family of languages.

They are also known as Siberian or Eskimo (Russian: эскимосы). The name Yuit (юит, plural: юиты) was officially assigned to them in 1931, at the brief time of the campaign of support of Indigenous cultures in the Soviet Union. Their self-designation is Yupighyt (йупигыт) meaning "true people".

The Eskaleut (/ɛˈskæliuːt/ e-SKAL-ee-oot), Eskimo–Aleut or Inuit–Yupik–Unangan languages are a language family native to the northern portions of the North American continent, and a small part of northeastern Asia. Languages in the family are indigenous to parts of what are now the United States (Alaska); Canada (Inuit Nunangat) including Nunavut, Northwest Territories (principally in the Inuvialuit Settlement Region), northern Quebec (Nunavik), and northern Labrador (Nunatsiavut); Greenland; and the Russian Far East (Chukchi Peninsula). The language family is also known as Eskaleutian, or Eskaleutic.

The Eskaleut language family is divided into two branches: Eskimoan and Aleut. The Aleut branch consists of a single language, Aleut, spoken in the Aleutian Islands and the Pribilof Islands. Aleut is divided into several dialects. The Eskimoan languages are divided into two branches: the Yupik languages, spoken in western and southwestern Alaska and in Chukotka, and the Inuit languages, spoken in northern Alaska, Canada and Greenland. Inuit languages are divided into several varieties. Neighbouring varieties are quite similar, although those at the farthest distances from the centre in the Diomede Islands and East Greenland are quite divergent.

The Chukchi, or Chukchee (Chukot: ԓыгъоравэтԓьэт, о'равэтԓьэт, ḷygʺoravètḷʹèt, o'ravètḷʹèt), are a Siberian ethnic group native to the Chukchi Peninsula, the shores of the Chukchi Sea and the Bering Sea region of the Arctic Ocean all within modern Russia. They speak the Chukchi language. The Chukchi originated from the people living around the Okhotsk Sea.

According to several studies on genomic research conducted from 2014 to 2018, the Chukchi are the closest Asian relatives of the indigenous peoples of the Americas, as such they are descendants of the settlers of Beringia who remained on the Russian side when the sea levels rose.