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The formal end to Tatar rule over Russia was the defeat of the Tatars at the Great Stand on the Ugra River in 1480. Ivan III (r. 1462–1505) and Vasili III (r. 1505–1533) had consolidated the centralized Russian state following the annexations of the Novgorod Republic in 1478, Tver in 1485, the Pskov Republic in 1510, Volokolamsk in 1513, Ryazan in 1521, and Novgorod-Seversk in 1522.
The Union of Soviet Socialist Republics[u](USSR),[v]commonly known as the Soviet Union,[w]was a transcontinental countrythat spanned much of Eurasiafrom 1922 to 1991. During its existence, it was the largest country by area, extending across eleven time zonesand sharing borders with twelve countries, and the third-most populous country.
The Soviet Union incorporated an area of over 22,402,200 square kilometres (8,649,500 sq mi), covering approximately one-sixth of Earth's land surface. It spanned most of Eurasia. Its largest and most populous republic was the Russian SFSR which covered roughly three-quarters of the surface area of the union, including the complete territory of ...
The Russian Soviet Federative Socialist Republic [b] (Russian SFSR or RSFSR), previously known as the Russian Soviet Republic [8] and the Russian Socialist Federative Soviet Republic, [9] and unofficially as Soviet Russia, [10] was an independent federal socialist state from 1917 to 1922, and afterwards the largest and most populous constituent republic of the Soviet Union (USSR) from 1922 to ...
The Republics of the Union of Soviet Socialist Republics or the Union Republics (Russian: Сою́зные Респу́блики, romanized:Soyúznye Respúbliki) were national-based administrative units of the Union of Soviet Socialist Republics (USSR). [ 1 ] The Soviet Union was formed in 1922 by a treaty between the Soviet republics of ...
Russia,[b]or the Russian Federation,[c]is a country spanning Eastern Europeand North Asia. It is the largest country in the world by area, extending across eleven time zonesand sharing land borders with fourteen countries. [d]It is the world's ninth-most populous countryand Europe's most populous country. Russia is a highly urbanised country ...
USSR–USA Maritime Boundary Agreement. The Russia–United States maritime boundary was established by the June 1, 1990 USA/USSR Maritime Boundary Agreement[ 1 ] (since Russia declared itself to be the successor of the Soviet Union). The United States Senate gave its advice and consent to ratification as early as on September 16, 1991, but it ...
7,566,673 km 2 (2,921,509 sq mi) Russia (Russian: Россия) is the largest country in the world, covering over 17,125,191 km 2 (6,612,073 sq mi), and encompassing more than one-eighth of Earth's inhabited land area. Russia extends across eleven time zones, and has the most borders of any country in the world, with sixteen sovereign nations.