Russia is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects. From northwest to southeast, Russia shares borders with Norway, Finland, Estonia, Latvia, Lithuania and Poland (both via Kaliningrad Oblast), Belarus, Ukraine, Georgia, Azerbaijan, Kazakhstan, the People's Republic of China, Mongolia, and North Korea. It also has maritime borders with Japan by the Sea of Okhotsk, and the United States by the Bering Strait.
At 17,075,400 square kilometers (6,592,800 sq mi), Russia is the largest country in the world, covering more than one eighth of the Earth's inhabited land area. Russia is also the ninth most populous nation with 143 million people. It extends across the whole of northern Asia and 40% of Europe, spanning nine time zones and incorporating a wide range of environments and landforms. Russia has the world's largest reserves of mineral and energy resources. It has the world's largest forest reserves and its lakes contain approximately one-quarter of the world's fresh water.
The nation's history began with that of the East Slavs, who emerged as a recognizable group in Europe between the 3rd and 8th centuries AD. Founded and ruled by a Varangian warrior elite and their descendants, the medieval state of Rus, arose in the 9th century. In 988 it adopted Orthodox Christianity from the Byzantine Empire, beginning the synthesis of Byzantine and Slavic cultures that defined Russian culture for the next millennium. Kievan Rus' ultimately disintegrated into a number of smaller states; most of the Rus' lands were overrun by the Mongol invasion and became tributaries of the nomadic Golden Horde.
The Grand Duchy of Moscow gradually reunified the surrounding Russian principalities, achieved independence from the Golden Horde, and came to dominate the cultural and political legacy of Kievan Rus'. By the 18th century, the nation had greatly expanded through conquest, annexation, and exploration to become the Russian Empire, which was the third largest empire in history, stretching from Poland in Europe to Alaska in North America.
The politics of Russia (the Russian Federation) take place in a framework of a federal semi-presidential republic. According to the Constitution of Russia, the President of Russia is head of state and of a multi-party system with executive power exercised by the government, headed by the Prime Minister, who is appointed by the President with the parliament's approval. Legislative power is vested in the two chambers of the Federal Assembly of the Russian Federation, while the President and the Government Issue numerous legally binding by-laws.
Russia's 160 ethnic groups speak some 100 languages. According to the 2002 census, 142.6 million people speak Russian, followed by Tatar with 5.3 million and Ukrainian with 1.8 million speakers. Russian is the only official state language, but the Constitution gives the individual republics the right to make their native language co-official next to Russian.
Early Russian painting is represented in icons and vibrant frescos, the two genres inherited from Byzantium. As Moscow rose to power, Theophanes the Greek, Dionisius and Andrei Rublev became vital names associated with a distinctly Russian art. The Russian Academy of Arts was created in 1757 and gave Russian artists an international role and status. Ivan Argunov, Dmitry Levitzky, Vladimir Borovikovsky and other 18th century academicians mostly focused on portrait painting. In the early 19th century, when neoclassicism and romantism flourished, mythological and Biblical themes inspired many prominent painings, notably by Karl Briullov and Alexander Ivanov.
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