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86-733: The Yarenskian Gorizont ("Yarenskian Horizon") is a major biostratigraphic unit in Russia corresponding to Upper Olenekian -age terrestrial sediments. It lies above the Ustmylian Gorizont of the Vetlugian Supergorizont , and is located below a short unconformity overlain by the Donguz Gorizont . Some paleontologists elevate the Yarenskian to a supergorizont and subdivide it into two smaller units:

172-585: A communist-led revolution in Afghanistan, Soviet forces invaded the country, ultimately starting the Soviet–Afghan War . In May 1988, the Soviets started to withdraw from Afghanistan , due to international opposition, persistent anti-Soviet guerrilla warfare, and a lack of support by Soviet citizens. From 1985 onwards, the last Soviet leader Mikhail Gorbachev , who sought to enact liberal reforms in

258-653: A troika was designated to take charge. Eventually Joseph Stalin , the General Secretary of the Communist Party , managed to suppress all opposition factions and consolidate power in his hands to become the country's dictator by the 1930s. Leon Trotsky , the main proponent of world revolution , was exiled from the Soviet Union in 1929, and Stalin's idea of Socialism in One Country became

344-611: A Varangian from the Rus' people , named Rurik , was elected ruler of Novgorod in 862. In 882, his successor Oleg ventured south and conquered Kiev , which had been previously paying tribute to the Khazars . Rurik's son Igor and Igor's son Sviatoslav subsequently subdued all local East Slavic tribes to Kievan rule, destroyed the Khazar Khaganate, and launched several military expeditions to Byzantium and Persia . In

430-510: A crisis. By 1991, economic and political turmoil began to boil over as the Baltic states chose to secede from the Soviet Union. On 17 March, a referendum was held, in which the vast majority of participating citizens voted in favour of changing the Soviet Union into a renewed federation . In June 1991, Boris Yeltsin became the first directly elected President in Russian history when he

516-527: A distinct time interval), while western geologists have separate chronological and stratigraphic systems. Russia Russia , or the Russian Federation , is a country spanning Eastern Europe and North Asia . It is the largest country in the world by area , extending across eleven time zones and sharing land borders with fourteen countries . It is the world's ninth-most populous country and Europe's most populous country . Russia

602-664: A global superpower. After World War II, according to the Potsdam Conference , the Red Army occupied parts of Eastern and Central Europe, including East Germany and the eastern regions of Austria . Dependent communist governments were installed in the Eastern Bloc satellite states. After becoming the world's second nuclear power , the Soviet Union established the Warsaw Pact alliance, and entered into

688-800: A large confederacy, which was subsequently taken over by the Cumans and the Kipchaks . The ancestors of Russians are among the Slavic tribes that separated from the Proto-Indo-Europeans, who appeared in the northeastern part of Europe c.  1500  years ago. The East Slavs gradually settled western Russia (approximately between modern Moscow and Saint-Petersburg ) in two waves: one moving from Kiev towards present-day Suzdal and Murom and another from Polotsk towards Novgorod and Rostov . Prior to Slavic migration, that territory

774-500: A member state of the G20 , SCO , BRICS , APEC , OSCE , and WTO ; and the leading member state of post-Soviet organisations such as CIS , CSTO , and EAEU/EEU . It possesses the largest stockpile of nuclear weapons and has the third-highest military expenditure . Russia is generally considered a great power and is a regional power . Internationally, Russia ranks very low in measurements of democracy , human rights and freedom of

860-487: A number of conflicts in former Soviet states and other countries , including its war with Georgia in 2008 and its war with Ukraine since 2014, which has involved the internationally unrecognised annexations of Ukrainian territory including Crimea in 2014 and four other regions in 2022 during an ongoing invasion . Russia is a permanent member of the United Nations Security Council ;

946-633: A secret protocol within the Molotov–Ribbentrop Pact with Nazi Germany . The Soviet Union later invaded Finland , and occupied and annexed the Baltic states , as well as parts of Romania . On 22 June 1941, Germany invaded the Soviet Union , opening the Eastern Front , the largest theater of World War II. Eventually, some 5 million Red Army troops were captured by the Nazis;

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1032-517: A struggle for global dominance, known as the Cold War , with the rivalling United States and NATO . After Stalin's death in 1953 and a short period of collective rule , the new leader Nikita Khrushchev denounced Stalin and launched the policy of de-Stalinization , releasing many political prisoners from the Gulag labour camps. The general easement of repressive policies became known later as

1118-526: A whole is characterized by the capitosaur amphibian Parotosuchus , and has also been known as the Parotosuchus fauna . A few geographical influence on the faunas can be observed; erythrosuchids and rhytidosteids are more common in southern exposures while procolophonids and putative " rauisuchids " are more common in the north. The Yarenskian encompasses several svitas (equivalent to geological formations ). The most fossiliferous and best-exposed

1204-433: Is a good example of this, there are other examples around the world. One of the other common examples of event horizons, besides volcanic eruptions. One more rare example are tsunami deposits. The reason for the rarity lies largely with the fact that tsunami deposits are in areas that experience frequent erosions, such as shorelines, and as such the ability for the ground to retain deposits and clean signs of such event horizons

1290-489: Is a highly urbanised country including 16 population centres with over a million inhabitants. Its capital and largest city is Moscow . Saint Petersburg is Russia's second-largest city and its cultural capital . The East Slavs emerged as a recognised group in Europe between the 3rd and 8th centuries CE. The first East Slavic state, Kievan Rus' , arose in the 9th century, and in 988, it adopted Orthodox Christianity from

1376-417: Is dismal. However, there are some examples of tsunamis, including more prominent examples of mega tsunamis. Most deposits come from during and after the quaternary period, especially due to the aforementioned accumulation and erosion issues. The tsunami deposits are most commonly found along coastal areas especially in regions along ocean fault lines. These areas include places like Indonesia as well as Japan and

1462-497: Is some controversy over how the stratigraphy of the area should be defined. Thin exposures of Yarenskian units are also known further north in the Vyatka , Vychegda , Luza , and Pechora basins. This article about a specific stratigraphic formation in Europe is a stub . You can help Misplaced Pages by expanding it . Gorizont (geology) Marker horizons are stratigraphic units of distinctive lithology (different from

1548-953: Is the Petropavlovskaya Svita (anglicized as Petropavlovka Formation ), a Fedorovskian-age assemblage in the Cis-Ural region (near the Ural River in Orenburg Oblast ). Another productive unit is the Gamskian-age Lipovskaya Formation , which is found near the Don River in Volgograd Oblast . The Caspian Depression includes coastal sediments equivalent to the Yarenskian (such as the Bogdo or Bogdinskaya Svita ), though there

1634-628: The Oxford English Dictionary , the English name Russia first appeared in the 14th century, borrowed from Medieval Latin : Russia , used in the 11th century and frequently in 12th-century British sources, in turn derived from Russi , 'the Russians'; and the suffix -ia . In modern historiography, this state is usually denoted as Kievan Rus' after its capital city. Another Medieval Latin name for Rus'

1720-554: The Battle of Kursk in the summer of 1943. Another German failure was the Siege of Leningrad , in which the city was fully blockaded on land between 1941 and 1944 by German and Finnish forces, and suffered starvation and more than a million deaths, but never surrendered. Soviet forces steamrolled through Eastern and Central Europe in 1944–1945 and captured Berlin in May 1945. In August 1945,

1806-765: The Brusilov Offensive of the Imperial Russian Army almost completely destroyed the Austro-Hungarian Army . However, the already-existing public distrust of the regime was deepened by the rising costs of war, high casualties , and rumors of corruption and treason. All this formed the climate for the Russian Revolution of 1917, carried out in two major acts. In early 1917, Nicholas II was forced to abdicate ; he and his family were imprisoned and later executed during

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1892-662: The Byzantine Empire . Kievan Rus' ultimately disintegrated; the Grand Duchy of Moscow led the unification of Russian lands, leading to the proclamation of the Tsardom of Russia in 1547. By the early 18th century, Russia had vastly expanded through conquest, annexation, and the efforts of Russian explorers , developing into the Russian Empire , which remains the third-largest empire in history . However, with

1978-475: The Congress of Vienna , which defined the map of post-Napoleonic Europe. The officers who pursued Napoleon into Western Europe brought ideas of liberalism back to Russia, and attempted to curtail the tsar's powers during the abortive Decembrist revolt of 1825. At the end of the conservative reign of Nicholas I (1825–1855), a zenith period of Russia's power and influence in Europe, was disrupted by defeat in

2064-693: The Crimean War . Nicholas's successor Alexander II (1855–1881) enacted significant changes throughout the country, including the emancipation reform of 1861 . These reforms spurred industrialisation, and modernised the Imperial Russian Army, which liberated much of the Balkans from Ottoman rule in the aftermath of the 1877–1878 Russo-Turkish War . During most of the 19th and early 20th century, Russia and Britain colluded over Afghanistan and its neighbouring territories in Central and South Asia;

2150-614: The Great Northern War (1700–1721), securing Russia's access to the sea and sea trade. In 1703, on the Baltic Sea, Peter founded Saint Petersburg as Russia's new capital. Throughout his rule, sweeping reforms were made , which brought significant Western European cultural influences to Russia. He was succeeded by Catherine I (1725–1727), followed by Peter II (1727–1730), and Anna . The reign of Peter I's daughter Elizabeth in 1741–1762 saw Russia's participation in

2236-701: The Khrushchev Thaw . At the same time, Cold War tensions reached its peak when the two rivals clashed over the deployment of the United States Jupiter missiles in Turkey and Soviet missiles in Cuba . In 1957, the Soviet Union launched the world's first artificial satellite , Sputnik 1 , thus starting the Space Age . Russian cosmonaut Yuri Gagarin became the first human to orbit

2322-707: The Oldowan period in the early Lower Paleolithic . About 2 million years ago, representatives of Homo erectus migrated to the Taman Peninsula in southern Russia. Flint tools, some 1.5 million years old, have been discovered in the North Caucasus . Radiocarbon dated specimens from Denisova Cave in the Altai Mountains estimate the oldest Denisovan specimen lived 195–122,700 years ago. Fossils of Denny , an archaic human hybrid that

2408-568: The Rurik dynasty that ruled Kievan Rus' collectively. Kiev's dominance waned, to the benefit of Vladimir-Suzdal in the north-east, the Novgorod Republic in the north, and Galicia-Volhynia in the south-west. By the 12th century, Kiev lost its pre-eminence and Kievan Rus' had fragmented into different principalities. Prince Andrey Bogolyubsky sacked Kiev in 1169 and made Vladimir his base, leading to political power being shifted to

2494-843: The Russian Civil War . The monarchy was replaced by a shaky coalition of political parties that declared itself the Provisional Government , and proclaimed the Russian Republic . On 19 January [ O.S. 6 January], 1918, the Russian Constituent Assembly declared Russia a democratic federal republic (thus ratifying the Provisional Government's decision). The next day the Constituent Assembly

2580-627: The Russian Revolution in 1917, Russia's monarchic rule was abolished and eventually replaced by the Russian SFSR —the world's first constitutionally socialist state . Following the Russian Civil War , the Russian SFSR established the Soviet Union with three other Soviet republics , within which it was the largest and principal constituent. At the expense of millions of lives , the Soviet Union underwent rapid industrialisation in

2666-632: The Seven Years' War (1756–1763). During the conflict, Russian troops overran East Prussia , reaching Berlin. However, upon Elizabeth's death, all these conquests were returned to the Kingdom of Prussia by pro-Prussian Peter III of Russia . Catherine II ("the Great"), who ruled in 1762–1796, presided over the Russian Age of Enlightenment . She extended Russian political control over

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2752-852: The Siberian River Routes , and by the mid-17th century, there were Russian settlements in eastern Siberia, on the Chukchi Peninsula , along the Amur River , and on the coast of the Pacific Ocean. In 1648, Semyon Dezhnyov became the first European to navigate through the Bering Strait . Under Peter the Great , Russia was proclaimed an empire in 1721, and established itself as one of the European great powers. Ruling from 1682 to 1725, Peter defeated Sweden in

2838-472: The Soviet Union , by joining the Russian SFSR into a single state with the Byelorussian , Transcaucasian , and Ukrainian republics. Eventually internal border changes and annexations during World War II created a union of 15 republics ; the largest in size and population being the Russian SFSR, which dominated the union politically, culturally, and economically. Following Lenin's death in 1924,

2924-563: The first human expedition into outer space . In 1991, the Russian SFSR emerged from the dissolution of the Soviet Union as the Russian Federation. A new constitution was adopted, which established a federal semi-presidential system . Since the turn of the century, Russia's political system has been dominated by Vladimir Putin , under whom the country has experienced democratic backsliding and become an authoritarian dictatorship . Russia has been militarily involved in

3010-666: The 10th to 11th centuries, Kievan Rus' became one of the largest and most prosperous states in Europe. The reigns of Vladimir the Great (980–1015) and his son Yaroslav the Wise (1019–1054) constitute the Golden Age of Kiev, which saw the acceptance of Orthodox Christianity from Byzantium , and the creation of the first East Slavic written legal code , the Russkaya Pravda . The age of feudalism and decentralisation had come, marked by constant in-fighting between members of

3096-448: The 16th century, Russia expanded east of the Ural Mountains . However, the Tsardom was weakened by the long and unsuccessful Livonian War against the coalition of the Kingdom of Poland and the Grand Duchy of Lithuania (later the united Polish–Lithuanian Commonwealth ), the Kingdom of Sweden , and Denmark–Norway for access to the Baltic coast and sea trade. In 1572, an invading army of Crimean Tatars were thoroughly defeated in

3182-414: The 1930s and later played a decisive role for the Allies in World War II by leading large-scale efforts on the Eastern Front . With the onset of the Cold War , it competed with the United States for ideological dominance and international influence . The Soviet era of the 20th century saw some of the most significant Russian technological achievements , including the first human-made satellite and

3268-428: The Byzantine double-headed eagle his own, and eventually Russia's, coat-of-arms. Vasili III united all of Russia by annexing the last few independent Russian states in the early 16th century. In development of the Third Rome ideas, the grand duke Ivan IV ("the Terrible") was officially crowned the first tsar of Russia in 1547. The tsar promulgated a new code of laws ( Sudebnik of 1550 ), established

3354-406: The Earth, aboard the Vostok 1 crewed spacecraft on 12 April 1961 . Following the ousting of Khrushchev in 1964, another period of collective rule ensued, until Leonid Brezhnev became the leader. The era of the 1970s and the early 1980s was later designated as the Era of Stagnation . The 1965 Kosygin reform aimed for partial decentralisation of the Soviet economy . In 1979, after

3440-415: The Polish–Lithuanian Commonwealth and annexed most of its territories into Russia , making it the most populous country in Europe. In the south, after the successful Russo-Turkish Wars against the Ottoman Empire , Catherine advanced Russia's boundary to the Black Sea, by dissolving the Crimean Khanate , and annexing Crimea . As a result of victories over Qajar Iran through the Russo-Persian Wars , by

3526-692: The Provisional Government and gave full governing power to the soviets, leading to the creation of the world's first socialist state . The Russian Civil War broke out between the anti-communist White movement and the Bolsheviks with its Red Army . In the aftermath of signing the Treaty of Brest-Litovsk that concluded hostilities with the Central Powers of World War I ; Bolshevist Russia surrendered most of its western territories, which hosted 34% of its population, 54% of its industries, 32% of its agricultural land, and roughly 90% of its coal mines. The Allied powers launched an unsuccessful military intervention in support of anti-communist forces. In

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3612-406: The Red Army invaded Manchuria and ousted the Japanese from Northeast Asia, contributing to the Allied victory over Japan. The 1941–1945 period of World War II is known in Russia as the Great Patriotic War . The Soviet Union, along with the United States, the United Kingdom and China were considered the Big Four of Allied powers in World War II, and later became the Four Policemen , which

3698-403: The Russian autocratic state. The destruction of Kievan Rus' saw the eventual rise of the Grand Duchy of Moscow , initially a part of Vladimir-Suzdal . While still under the domain of the Mongol - Tatars and with their connivance, Moscow began to assert its influence in the region in the early 14th century, gradually becoming the leading force in the "gathering of the Russian lands". When

3784-476: The Russian parliament culminated in a constitutional crisis which ended violently through military force. During the crisis, Yeltsin was backed by Western governments, and over 100 people were killed. In December, a referendum was held and approved, which introduced a new constitution, giving the president enormous powers. The 1990s were plagued by armed conflicts in the North Caucasus , both local ethnic skirmishes and separatist Islamist insurrections. From

3870-408: The Soviet Union led Russia into a deep and prolonged depression. During and after the disintegration of the Soviet Union, wide-ranging reforms including privatisation and market and trade liberalisation were undertaken, including radical changes along the lines of " shock therapy ". The privatisation largely shifted control of enterprises from state agencies to individuals with inside connections in

3956-523: The Soviet Union. The transitional disorganisation of the country's agriculture, combined with the harsh state policies and a drought, led to the Soviet famine of 1932–1933 ; which killed 5.7 to 8.7 million, 3.3 million of them in the Russian SFSR. The Soviet Union, ultimately, made the costly transformation from a largely agrarian economy to a major industrial powerhouse within a short span of time. The Soviet Union entered World War II on 17 September 1939 with its invasion of Poland , in accordance with

4042-406: The Soviet system, introduced the policies of glasnost (openness) and perestroika (restructuring) in an attempt to end the period of economic stagnation and to democratise the government . This, however, led to the rise of strong nationalist and separatist movements across the country. Prior to 1991, the Soviet economy was the world's second-largest, but during its final years, it went into

4128-493: The Ukrainian leader, Bohdan Khmelnytsky , offered to place Ukraine under the protection of the Russian tsar, Alexis ; whose acceptance of this offer led to another Russo-Polish War . Ultimately, Ukraine was split along the Dnieper , leaving the eastern part, ( Left-bank Ukraine and Kiev ) under Russian rule. In the east, the rapid Russian exploration and colonisation of vast Siberia continued, hunting for valuable furs and ivory. Russian explorers pushed eastward primarily along

4214-516: The Volga-Dnieper region of southern Russia and Ukraine as the urheimat of the Proto-Indo-Europeans . Early Indo-European migrations from the Pontic–Caspian steppe of Ukraine and Russia spread Yamnaya ancestry and Indo-European languages across large parts of Eurasia. Nomadic pastoralism developed in the Pontic–Caspian steppe beginning in the Chalcolithic . Remnants of these steppe civilizations were discovered in places such as Ipatovo , Sintashta , Arkaim , and Pazyryk , which bear

4300-415: The bulk of the sequence) with a wide geographical extent that are used in stratigraphic correlation. Layers of tuff (lithified volcanic ash ) as well as sand and organic materials from the ocean (from tsunamis) are often used for this purpose. This is helpful when measuring the time periods of deposits and the layers they are in, as well as determining the age of fossils. Marker horizons can also indicate

4386-423: The capital Moscow. In 1612, the Poles were forced to retreat by the Russian volunteer corps, led by merchant Kuzma Minin and prince Dmitry Pozharsky . The Romanov dynasty acceded to the throne in 1613 by the decision of the Zemsky Sobor, and the country started its gradual recovery from the crisis. Russia continued its territorial growth through the 17th century, which was the age of the Cossacks . In 1654,

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4472-414: The control of the Golden Horde and consolidated the whole of northern Rus' under Moscow's dominion, and was the first Russian ruler to take the title "Grand Duke of all Rus'". After the fall of Constantinople in 1453, Moscow claimed succession to the legacy of the Eastern Roman Empire . Ivan III married Sophia Palaiologina , the niece of the last Byzantine emperor Constantine XI , and made

4558-782: The country was more often referred to by its inhabitants as Rus ' , the Russian land ( Russkaia zemlia ), or the Muscovite state ( Moskovskoe gosudarstvo ), among other variations. In 1721, Peter the Great changed the name of the state from Tsardom of Russia ( Russian : Русское царство , romanized :  Russkoye tsarstvo ) or Tsardom of Muscovy ( Russian : Московское царство , romanized :  Moskovskoye tsarstvo ) to Russian Empire ( Rossiiskaia imperiia ). There are several words in Russian which translate to "Russians" in English. The noun and adjective русский , russkiy refers to ethnic Russians . The adjective российский , rossiiskiy denotes Russian citizens regardless of ethnicity. The same applies to

4644-400: The crucial Battle of Molodi . The death of Ivan's sons marked the end of the ancient Rurik dynasty in 1598, and in combination with the disastrous famine of 1601–1603 , led to a civil war, the rule of pretenders, and foreign intervention during the Time of Troubles in the early 17th century. The Polish–Lithuanian Commonwealth , taking advantage, occupied parts of Russia, extending into

4730-405: The earliest known traces of horses in warfare . The genetic makeup of speakers of the Uralic language family in northern Europe was shaped by migration from Siberia that began at least 3,500 years ago. In the 3rd to 4th centuries CE, the Gothic kingdom of Oium existed in southern Russia, which was later overrun by Huns . Between the 3rd and 6th centuries CE, the Bosporan Kingdom , which

4816-451: The existence of ancient lakebeds and riverbeds, as well as things such as inland oceans. Marker horizons can be important for all fields in geology because they are important indications of all the various changes in the geological time records. As such, they are important in the study of the formation of the Earth and of certain landforms as well as the climate at certain times and the events that may have occurred in certain regions or all over

4902-417: The first Europeans to reach and colonise Alaska . In 1803–1806, the first Russian circumnavigation was made. In 1820, a Russian expedition discovered the continent of Antarctica . During the Napoleonic Wars , Russia joined alliances with various European powers, and fought against France. The French invasion of Russia at the height of Napoleon's power in 1812 reached Moscow, but eventually failed as

4988-399: The first Russian feudal representative body (the Zemsky Sobor ), revamped the military, curbed the influence of the clergy, and reorganised local government. During his long reign, Ivan nearly doubled the already large Russian territory by annexing the three Tatar khanates: Kazan and Astrakhan along the Volga , and the Khanate of Sibir in southwestern Siberia. Ultimately, by the end of

5074-418: The first half of the 19th century, Russia also conquered the Caucasus . Catherine's successor, her son Paul , was unstable and focused predominantly on domestic issues . Following his short reign, Catherine's strategy was continued with Alexander I's (1801–1825) wresting of Finland from the weakened Sweden in 1809, and of Bessarabia from the Ottomans in 1812. In North America, the Russians became

5160-457: The geological record. For example, in regions such as Iceland, it is common to find deposits of tephra, a material spewed out of volcanoes in eruptions. Researchers in Iceland have been able to identify roughly 65–75% of all 200 recorded eruptions since 900 AD using the study and analysis of event horizons composed of tephra. This is just one of many important examples of the use of marker horizons and event horizons to study and date events from

5246-464: The gorizont, can be anglicized as "horizon". However, this concept is not equivalent to the term used in western geological systems. While the western term "horizon" pertains to a small lithological section within a geological formation, a gorizont is a broad biostratigraphic unit. It may encompass several "svitas" ( lithological units equivalent to a formation ). Both gorizonts and svitas are also considered chronostratigraphic units (correlated with

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5332-485: The government, which led to the rise of Russian oligarchs . Many of the newly rich moved billions in cash and assets outside of the country in an enormous capital flight . The depression of the economy led to the collapse of social services—the birth rate plummeted while the death rate skyrocketed, and millions plunged into poverty; while extreme corruption, as well as criminal gangs and organised crime rose significantly. In late 1993, tensions between Yeltsin and

5418-424: The latter deliberately starved to death or otherwise killed 3.3 million Soviet POWs , and a vast number of civilians, as the " Hunger Plan " sought to fulfil Generalplan Ost . Although the Wehrmacht had considerable early success, their attack was halted in the Battle of Moscow . Subsequently, the Germans were dealt major defeats first at the Battle of Stalingrad in the winter of 1942–1943, and then in

5504-515: The meantime, both the Bolsheviks and White movement carried out campaigns of deportations and executions against each other, known respectively as the Red Terror and White Terror . By the end of the violent civil war, Russia's economy and infrastructure were heavily damaged, and as many as 10 million perished during the war, mostly civilians. Millions became White émigrés , and the Russian famine of 1921–1922 claimed up to five million victims. On 30 December 1922, Lenin and his aides formed

5590-488: The more recently coined noun россиянин , rossiianyn , "Russian" in the sense of citizen of the Russian state. According to the Primary Chronicle , the word Rus' is derived from the Rus' people , who were a Swedish tribe, and where the three original members of the Rurikid dynasty came from. The Finnish word for Swedes, ruotsi , has the same origin. Later archeological studies mostly confirmed this theory. The first human settlement on Russia dates back to

5676-434: The north-east. Led by Prince Alexander Nevsky , Novgorodians repelled the invading Swedes in the Battle of the Neva in 1240, as well as the Germanic crusaders in the Battle on the Ice in 1242. Kievan Rus' finally fell to the Mongol invasion of 1237–1240, which resulted in the sacking of Kiev and other cities, as well as the death of a major part of the population. The invaders, later known as Tatars , formed

5762-474: The northwestern United States. These deposits are usually in the form of sand and organic material (such as corals) and other material that is often found along shorelines and the ocean floor. They can be found many miles inland or just along the coast. They are especially common in cliffs a decent amount inland and high above sea level. These are more common than those along the shore due to the aforementioned erosion. The fundamental unit of Russian stratigraphy,

5848-435: The obstinate resistance in combination with the bitterly cold Russian winter led to a disastrous defeat of invaders, in which the pan-European Grande Armée faced utter destruction. Led by Mikhail Kutuzov and Michael Andreas Barclay de Tolly , the Imperial Russian Army ousted Napoleon and drove throughout Europe in the War of the Sixth Coalition , ultimately entering Paris. Alexander I controlled Russia's delegation at

5934-538: The official line. The continued internal struggle in the Bolshevik party culminated in the Great Purge . Under Stalin's leadership, the government launched a command economy , industrialisation of the largely rural country , and collectivisation of its agriculture . During this period of rapid economic and social change, millions of people were sent to penal labour camps , including many political convicts for their suspected or real opposition to Stalin's rule; and millions were deported and exiled to remote areas of

6020-518: The older Fedorovskian Gorizont ( Fedorovkian Horizon ) and the younger Gamskian Gorizont ( Gamian Horizon ). Others prefer to consider the Fedorovskian and Gamskian to be subgorizonts or members of the Yarenskian. Vertebrate index fossils of the Fedorovskian include the lungfish Gnathorhiza , the trematosaurid Inflectosaurus , and the procolophonid Burtensia . In the Gamskian, these index fossils are replaced by Ceratodus , Trematosaurus , and Kapes , respectively. The Yarenskian as

6106-530: The past. These event horizons depending on the size of the eruption can commonly be located all over the world and throughout many volcanically active regions. Volcanic eruption deposits can often hold up better than tsunami deposits because they are not always on or near shorelines and as such are less likely to be eroded. However, unlike tsunamis, not all volcanic eruptions produce materials such as tephra that indicate an eruption. Some produce other materials that are not as likely to survive erosion. Whilst Iceland

6192-407: The press ; the country also has high levels of perceived corruption . As of 2024, Russia has a high-income economy which ranks eleventh in the world by nominal GDP and fourth at purchasing power parity , relying on its vast mineral and energy resources ; the world's second-largest for oil production and natural gas production . Russia is home to 32 UNESCO World Heritage Sites . According to

6278-589: The rivalry between the two major European empires came to be known as the Great Game . The late 19th century saw the rise of various socialist movements in Russia. Alexander II was assassinated in 1881 by revolutionary terrorists. The reign of his son Alexander III (1881–1894) was less liberal but more peaceful. Under last Russian emperor, Nicholas II (1894–1917), the Revolution of 1905

6364-876: The seat of the Metropolitan of the Russian Orthodox Church moved to Moscow in 1325, its influence increased. Moscow's last rival, the Novgorod Republic , prospered as the chief fur trade centre and the easternmost port of the Hanseatic League . Led by Prince Dmitry Donskoy of Moscow, the united army of Russian principalities inflicted a milestone defeat on the Mongol-Tatars in the Battle of Kulikovo in 1380. Moscow gradually absorbed its parent duchy and surrounding principalities, including formerly strong rivals such as Tver and Novgorod . Ivan III ("the Great") threw off

6450-656: The state of the Golden Horde , which ruled over Russia for the next two centuries. Only the Novgorod Republic escaped foreign occupation after it agreed to pay tribute to the Mongols. Galicia-Volhynia would later be absorbed by Lithuania and Poland , while the Novgorod Republic continued to prosper in the north. In the northeast, the Byzantine-Slavic traditions of Kievan Rus' were adapted to form

6536-523: The time Chechen separatists declared independence in the early 1990s, an intermittent guerrilla war was fought between the rebel groups and Russian forces. Terrorist attacks against civilians were carried out by Chechen separatists, claiming the lives of thousands of Russian civilians. After the dissolution of the Soviet Union, Russia assumed responsibility for settling the latter's external debts. In 1992, most consumer price controls were eliminated, causing extreme inflation and significantly devaluing

6622-499: The world. An event horizon is a bed that marks a geological event, such as an earthquake or a meteorite impact. It is the basic unit used in event stratigraphy. It is related to the marker horizons in that event horizons can be used as a marker horizon, though they are not always the same. Marker horizons can emerge from more situation sources such as inland oceans, whereas event horizons are more often associated with specific events. Event horizons can also be used to indicate events in

6708-515: Was Ruthenia . In Russian, the current name of the country, Россия ( Rossiya ), comes from the Byzantine Greek name for Rus', Ρωσία ( Rosía ). A new form of the name Rus ' , Росия ( Rosiya ), was borrowed from the Greek term and first attested in 1387. The name Rossiia appeared in Russian sources in the late 15th century, but until the end of the 17th century

6794-449: Was elected President of the Russian SFSR. In August 1991, a coup d'état attempt by members of Gorbachev's government, directed against Gorbachev and aimed at preserving the Soviet Union, instead led to the end of the Communist Party of the Soviet Union. On 25 December 1991, following the dissolution of the Soviet Union , along with contemporary Russia, fourteen other post-Soviet states emerged. The economic and political collapse of

6880-687: Was a Hellenistic polity that succeeded the Greek colonies, was also overwhelmed by nomadic invasions led by warlike tribes such as the Huns and Eurasian Avars . The Khazars , who were of Turkic origin , ruled the steppes between the Caucasus in the south, to the east past the Volga river basin, and west as far as Kyiv on the Dnieper river until the 10th century. After them came the Pechenegs who created

6966-670: Was dissolved by the All-Russian Central Executive Committee . An alternative socialist establishment co-existed, the Petrograd Soviet , wielding power through the democratically elected councils of workers and peasants, called soviets . The rule of the new authorities only aggravated the crisis in the country instead of resolving it, and eventually, the October Revolution , led by Bolshevik leader Vladimir Lenin , overthrew

7052-515: Was found at Kostyonki–Borshchyovo , and at Sungir , dating back to 34,600 years ago—both in western Russia . Humans reached Arctic Russia at least 40,000 years ago, in Mamontovaya Kurya . Ancient North Eurasian populations from Siberia genetically similar to Mal'ta–Buret' culture and Afontova Gora were an important genetic contributor to Ancient Native Americans and Eastern Hunter-Gatherers . The Kurgan hypothesis places

7138-581: Was half Neanderthal and half Denisovan, and lived some 90,000 years ago, was also found within the latter cave. Russia was home to some of the last surviving Neanderthals, from about 45,000 years ago, found in Mezmaiskaya cave . The first trace of an early modern human in Russia dates back to 45,000 years, in Western Siberia . The discovery of high concentration cultural remains of anatomically modern humans , from at least 40,000 years ago,

7224-584: Was populated by Finno-Ugrian peoples. From the 7th century onwards, the incoming East Slavs slowly assimilated the native Finno-Ugrians. The establishment of the first East Slavic states in the 9th century coincided with the arrival of Varangians , the Vikings who ventured along the waterways extending from the eastern Baltic to the Black and Caspian Seas. According to the Primary Chronicle ,

7310-539: Was the foundation of the United Nations Security Council . During the war, Soviet civilian and military death were about 26–27 million , accounting for about half of all World War II casualties . The Soviet economy and infrastructure suffered massive devastation, which caused the Soviet famine of 1946–1947 . However, at the expense of a large sacrifice, the Soviet Union emerged as

7396-695: Was triggered by the humiliating failure of the Russo-Japanese War . The uprising was put down, but the government was forced to concede major reforms ( Russian Constitution of 1906 ), including granting freedoms of speech and assembly , the legalisation of political parties, and the creation of an elected legislative body, the State Duma . In 1914, Russia entered World War I in response to Austria-Hungary 's declaration of war on Russia's ally Serbia , and fought across multiple fronts while isolated from its Triple Entente allies. In 1916,

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