In structural geology, striations are linear furrows, or linear marks, generated from fault movement. The striation's direction reveal the movement directions in the fault plane. Similar striations called. Striations can be caused by underwater landslides. Striations can be a growth pattern or mineral habit that looks like a set of hairline grooves, shown on faces of certain minerals. Examples of minerals that can show growth striations include pyrite, quartz, tourmaline and sphalerite
Graphite, archaically referred to as plumbago, is a crystalline form of the element carbon with its atoms arranged in a hexagonal structure. It occurs in this form and is the most stable form of carbon under standard conditions. Under high pressures and temperatures it converts to diamond. Graphite is used in lubricants, its high conductivity makes it useful in electronic products such as electrodes and solar panels. The principal types of natural graphite, each occurring in different types of ore deposits, are Crystalline small flakes of graphite occurs as isolated, plate-like particles with hexagonal edges if unbroken; when broken the edges can be angular. Ordered pyrolytic graphite refers to graphite with an angular spread between the graphite sheets of less than 1°; the name "graphite fiber" is sometimes used to refer to carbon fibers or carbon fiber-reinforced polymer. Graphite occurs in metamorphic rocks as a result of the reduction of sedimentary carbon compounds during metamorphism, it occurs in igneous rocks and in meteorites.
Minerals associated with graphite include quartz, calcite and tourmaline. The principal export sources of mined graphite are in order of tonnage: China, Canada and Madagascar. In meteorites, graphite occurs with silicate minerals. Small graphitic crystals in meteoritic iron are called cliftonite; some microscopic grains have distinctive isotopic compositions, indicating that they were formed before the Solar system. They are one of about 12 known types of mineral that predate the Solar System and have been detected in molecular clouds; these minerals were formed in the ejecta when supernovae exploded or low- to intermediate-sized stars expelled their outer envelopes late in their lives. Graphite may be the third oldest mineral in the Universe. Solid carbon comes in different forms known as allotropes depending on the type of chemical bond; the two most common are graphite. In diamond the bonds are sp3 and the atoms form tetrahedra with each bound to four nearest neighbors. In graphite they are sp2 orbital hybrids and the atoms form in planes with each bound to three nearest neighbors 120 degrees apart.
The individual layers are called graphene. In each layer, the carbon atoms are arranged in a honeycomb lattice with separation of 0.142 nm, the distance between planes is 0.335 nm. Atoms in the plane are bonded covalently, with only three of the four potential bonding sites satisfied; the fourth electron is free to migrate in the plane. However, it does not conduct in a direction at right angles to the plane. Bonding between layers is via weak van der Waals bonds, which allows layers of graphite to be separated, or to slide past each other; the two known forms of graphite and beta, have similar physical properties, except that the graphene layers stack differently. The alpha graphite may be either buckled; the alpha form can be converted to the beta form through mechanical treatment and the beta form reverts to the alpha form when it is heated above 1300 °C. The equilibrium pressure and temperature conditions for a transition between graphite and diamond is well established theoretically and experimentally.
The pressure changes linearly between 1.7 GPa at 0 K and 12 GPa at 5000 K. However, the phases have a wide region about this line where they can coexist. At normal temperature and pressure, 20 °C and 1 standard atmosphere, the stable phase of carbon is graphite, but diamond is metastable and its rate of conversion to graphite is negligible. However, at temperatures above about 4500 K, diamond converts to graphite. Rapid conversion of graphite to diamond requires pressures well above the equilibrium line: at 2000 K, a pressure of 35 GPa is needed; the acoustic and thermal properties of graphite are anisotropic, since phonons propagate along the bound planes, but are slower to travel from one plane to another. Graphite's high thermal stability and electrical and thermal conductivity facilitate its widespread use as electrodes and refractories in high temperature material processing applications. However, in oxygen-containing atmospheres graphite oxidizes to form carbon dioxide at temperatures of 700 °C and above.
Graphite is hence useful in such applications as arc lamp electrodes. It can conduct electricity due to the vast electron delocalization within the carbon layers; these valence electrons are free to move. However, the electricity is conducted within the plane of the layers; the conductive properties of powdered graphite allow its use as pressure sensor in carbon microphones. Graphite and graphite powder are valued in industrial applications for their self-lubricating and dry lubricating properties. There is a common belief that graphite's lubricating properties are due to the loose interlamellar coupling between sheets in the structure. However, it has been shown that in a vacuum environment, graphite degrades as a lubricant, due to the hypoxic conditions; this observation led to the hypothesis that the lubrication is due to the presence of fluids between the layers, such as air and water, which are adsorbed from the
University of New Brunswick
The University of New Brunswick is a public university with two primary campuses in Fredericton and Saint John, New Brunswick. It is the oldest English-language university in Canada, among the oldest public universities in North America. UNB was founded by a group of seven Loyalists who left the United States after the American Revolution. UNB has two main campuses: the original campus, founded in 1785 in Fredericton, a smaller campus which opened in Saint John in 1964. In addition, there are two small satellite health sciences campuses located in Moncton and Bathurst, New Brunswick, two offices in the Caribbean and in Beijing. UNB offers over 75 degrees in fourteen faculties at the undergraduate and graduate levels with a total student enrollment of 11,400 between the two principal campuses. UNB was named the most entrepreneurial university in Canada at the 2014 Startup Canada Awards. In 1783, Loyalist settlers began to build upon the ruins of a former Acadian village called Ste-Anne-des-Pays-Bas.
The new settlement was named Frederick's Town in honour of Prince Frederick, son of King George III and uncle of Queen Victoria. Modelled on the Anglican ideals of older, European institutions, the University of New Brunswick was founded in 1785 as the Academy of Liberal Arts and Sciences; the petition requesting the establishment of the school, titled "The Founders' Petition of 1785," was addressed to Governor Thomas Carleton and was signed by seven Loyalist men: William Paine, William Wanton, George Sproule, Zephaniah Kingsley, Sr. John Coffin, Ward Chipman, Adino Paddock. To his Excellency Thomas Carleton Esquire Governor Captain General, Commander in Chief, of the Province of New Brunswick, the territories thereunto belonging, Vice Admiral Chancellor &c &c &c: — Your memorialists whose names are hereunto subscribed, beg leave to represent, state to your consideration the Necessity and expediency of an early attention to the Establishment in this Infant Province of an Academy, or School of liberal Arts and Sciences.
Your Excellency need not be reminded of the many Peculiarities attending the Settlement of this Country The Settlement of other Provinces has originated in the voluntary Exertions of a few enterprising Individuals and prosecuting their Labor at their Leisure, as they found it convenient, most for their Advantage – Far different is the Situation in which the loyal Adventurers here find themselves – Many of them upon removing had Sons, whose Time of life, former Hopes, call for an immediate attention to their Education – Many publick advantages, many Conveniences would result to Individuals could this be affected within this Province, the Particulars of which it is unnecessary to ennumerate – Your Memorialists do therefore most earnestly request your Excellency will be pleased to grant a Charter for the establishing, founding such an Academy... By an 1800 provincial charter, signed by Jonathan Odell, the Academy of Liberal Arts and Sciences became the College of New Brunswick; the College was succeeded by King's College, granted by royal charter in December 1827.
King's College operated under the control of the Church of England until 1859, when it was made non-sectarian by an act of the provincial legislature that transformed the College into the University of New Brunswick. In 1866, Mary Kingsley Tibbits became the first admitted female student of UNB. In 1906, UNB established a bicameral system of university government consisting of a senate responsible for academic policy, a board of governors exercising exclusive control over financial policy and other matters; the president, appointed by the board, was to provide a link between the two bodies and to provide institutional leadership. By 1867, the University of New Brunswick had two faculties: Arts and Applied Science, it awarded the degrees of Bachelor of Arts, Bachelor of Science, Master of Arts, Doctor of Science. The latter was awarded only in the fields of civil engineering, electrical engineering, forestry. At this time, the university had 156 male students, 21 female students, only eleven academic staff, who were all male.
In the 1960s, University policies changed in response to social pressure and the belief that higher education was a key to social justice and economic productivity for individuals and for society. In 1964, a second, smaller campus was established in New Brunswick; the growth of the UNBSJ campus is notable, for the campus began with only 96 students spread throughout various buildings in Saint John's central business district. In 1968, UNBSJ moved to its new home at Tucker Park; the Association of University of New Brunswick Teachers was established in 1954. In 1959, the Faculty of Law moved from Saint John to Fredericton following a report on the status of legal education in Canada by Professor Maxwell Cohen from McGill University. In his report, Cohen stated that the Saint John Law School was only "nominally a faculty of UNB"; this prompted Lord Beaverbrook, as Chancellor, UNB President Colin B. Mackay, to permanently move the Saint John Law School to the UNB Fredericton campus, despite the Dean's objections.
In the fall of 2007, a report commissioned by the provincial government recommended that UNBSJ and the New Brunswick Community College be reformed and consolidated into a new polytechnic post-secondary institute. The proposal came under heavy criticism and led to the several organized protests. Under heavy fire from the public, the Graham government announced that it would set aside the possibility of UNB Saint John losing its status as a univers
Siberia is an extensive geographical region spanning much of Eurasia and North Asia. Siberia has been a part of modern Russia since the 17th century; the territory of Siberia extends eastwards from the Ural Mountains to the watershed between the Pacific and Arctic drainage basins. The Yenisei River conditionally divides Siberia into two parts and Eastern. Siberia stretches southwards from the Arctic Ocean to the hills of north-central Kazakhstan and to the national borders of Mongolia and China. With an area of 13.1 million square kilometres, Siberia accounts for 77% of Russia's land area, but it is home to 36 million people—27% of the country's population. This is equivalent to an average population density of about 3 inhabitants per square kilometre, making Siberia one of the most sparsely populated regions on Earth. If it were a country by itself, it would still be the largest country in area, but in population it would be the world's 35th-largest and Asia's 14th-largest. Worldwide, Siberia is well known for its long, harsh winters, with a January average of −25 °C, as well as its extensive history of use by Russian and Soviet administrations as a place for prisons, labor camps, exile.
The origin of the name is unknown. Some sources say that "Siberia" originates from the Siberian Tatar word for "sleeping land". Another account sees the name as the ancient tribal ethnonym of the Sirtya, an ethnic group which spoke a Paleosiberian language; the Sirtya people were assimilated into the Siberian Tatars. The modern usage of the name was recorded in the Russian language after the Empire's conquest of the Siberian Khanate. A further variant claims; the Polish historian Chyliczkowski has proposed that the name derives from the proto-Slavic word for "north", but Anatole Baikaloff has dismissed this explanation. He said that the neighbouring Chinese and Mongolians, who have similar names for the region, would not have known Russian, he suggests that the name might be a combination of two words with Turkic origin, "su" and "bir". The region has paleontological significance, as it contains bodies of prehistoric animals from the Pleistocene Epoch, preserved in ice or in permafrost. Specimens of Goldfuss cave lion cubs and another woolly mammoth from Oymyakon, a woolly rhinoceros from the Kolyma River, bison and horses from Yukagir have been found.
The Siberian Traps were formed by one of the largest-known volcanic events of the last 500 million years of Earth's geological history. Their activity continued for a million years and some scientists consider it a possible cause of the "Great Dying" about 250 million years ago, – estimated to have killed 90% of species existing at the time. At least three species of human lived in Southern Siberia around 40,000 years ago: H. sapiens, H. neanderthalensis, the Denisovans. In 2010 DNA evidence identified the last as a separate species. Siberia was inhabited by different groups of nomads such as the Enets, the Nenets, the Huns, the Scythians and the Uyghurs; the Khan of Sibir in the vicinity of modern Tobolsk was known as a prominent figure who endorsed Kubrat as Khagan of Old Great Bulgaria in 630. The Mongols conquered a large part of this area early in the 13th century. With the breakup of the Golden Horde, the autonomous Khanate of Sibir was established in the late 15th century. Turkic-speaking Yakut migrated north from the Lake Baikal region under pressure from the Mongol tribes during the 13th to 15th century.
Siberia remained a sparsely populated area. Historian John F. Richards wrote: "... it is doubtful that the total early modern Siberian population exceeded 300,000 persons."The growing power of Russia in the West began to undermine the Siberian Khanate in the 16th century. First, groups of traders and Cossacks began to enter the area; the Russian Army was directed to establish forts farther and farther east to protect new settlers from European Russia. Towns such as Mangazeya, Tara and Tobolsk were developed, the last being declared the capital of Siberia. At this time, Sibir was the name of a fortress at Qashlik, near Tobolsk. Gerardus Mercator, in a map published in 1595, marks Sibier both as the name of a settlement and of the surrounding territory along a left tributary of the Ob. Other sources contend that the Xibe, an indigenous Tungusic people, offered fierce resistance to Russian expansion beyond the Urals; some suggest. By the mid-17th century, Russia had established areas of control; some 230,000 Russians had settled in Siberia by 1709.
Siberia was a destination for sending exiles. The first great modern change in Siberia was the Trans-Siberian Railway, constructed during 1891–1916, it linked Siberia more to the industrialising Russia of Nicholas II. Around seven million people moved to Siberia from European Russia between 1801 and 1914. From 1859 to 1917, more than half a million people migrated to the Russian Far East. Siberia has extensive natural resources. During the 20th century, large-scale exploitation of these was developed, industrial towns cropped up throughout the region. At 7:15 a.m. on 30 June 1908, millions of trees were felled near the Podkamennaya Tunguska River in central Siberia in the Tunguska Event. Most scientists believe this resulted from the air burst of a comet. Though no crater has been found, the landscape in the area still bears the scars of this event. In the early decades of the Soviet Union (
The Gulag was the government agency in charge of the Soviet forced-labor camp-system, set up under Vladimir Lenin and reached its peak during Joseph Stalin's rule from the 1930s to the early 1950s. English-language speakers use the word gulag to refer to any forced-labor camp in the Soviet Union, including camps which existed in post-Stalin times; the camps housed a wide range of convicts, from petty criminals to political prisoners. Large numbers were convicted by simplified procedures, such as by NKVD troikas or by other instruments of extrajudicial punishment; the Gulag is recognized by many as a major instrument of political repression in the Soviet Union. The agency was first administered by the GPU by the NKVD and in the final years by the Ministry of Internal Affairs; the Solovki prison camp, the first corrective labor camp constructed after the revolution, was established in 1918 and legalized by a decree "On the creation of the forced-labor camps" on April 15, 1919. The internment system grew reaching a population of 100,000 in the 1920s.
According to Nicolas Werth, author of The Black Book of Communism, the yearly mortality rate in the Soviet concentration camps varied, reaching 5% and 20% while dropping in the post-war years. The emergent consensus among scholars who utilize official archival data is that of the 18 million who were sent to the Gulag from 1930 to 1953 1.5 to 1.7 million perished there or as a result of their detention. However, some historians who question the reliability of such data and instead rely on literary sources come to higher estimations. Archival researchers have found "no plan of destruction" of the gulag population and no statement of official intent to kill them, prisoner releases vastly exceeded the number of deaths in the Gulag. Aleksandr Solzhenitsyn, winner of the Nobel Prize in Literature, who survived eight years of Gulag incarceration, gave the term its international repute with the publication of The Gulag Archipelago in 1973; the author likened the scattered camps to "a chain of islands", as an eyewitness he described the Gulag as a system where people were worked to death.
In March 1940, there were 53 Gulag camp directorates and 423 labor colonies in the Soviet Union. Many mining and industrial towns and cities in northern and eastern Russia and in Kazakhstan such as Karaganda, Norilsk and Magadan, were blocks of camps built by prisoners and subsequently run by ex-prisoners; some suggest that 14 million people were imprisoned in the Gulag labor camps from 1929 to 1953. Other calculations by the historian Orlando Figes, refer to 25 million prisoners of the Gulag in 1928–1953. A further 6–7 million were deported and exiled to remote areas of the USSR, 4–5 million passed through labor colonies, plus 3.5 million who were in, or, sent to, labor settlements. According to some estimates, the total population of the camps varied from 510,307 in 1934 to 1,727,970 in 1953. According to other estimates, at the beginning of 1953 the total number of prisoners in prison camps was more than 2.4 million of which more than 465,000 were political prisoners. The institutional analysis of the Soviet concentration system is complicated by the formal distinction between GULAG and GUPVI.
GUPVI was the Main Administration for Affairs of Prisoners of War and Internees, a department of NKVD in charge of handling of foreign civilian internees and POWs in the Soviet Union during and in the aftermath of World War II. In many ways the GUPVI system was similar to GULAG, its major function was the organization of foreign forced labor in the Soviet Union. The top management of GUPVI came from the GULAG system; the major noted distinction from GULAG was the absence of convicted criminals in the GUPVI camps. Otherwise the conditions in both camp systems were similar: hard labor, poor nutrition and living conditions, high mortality rate. For the Soviet political prisoners, like Solzhenitsyn, all foreign civilian detainees and foreign POWs were imprisoned in the GULAG. According with the estimates, in total, during the whole period of the existence of GUPVI there were over 500 POW camps, which imprisoned over 4,000,000 POW. Most Gulag inmates were not political prisoners, although significant numbers of political prisoners could be found in the camps at any one time.
Petty crimes and jokes about the Soviet government and officials were punishable by imprisonment. About half of political prisoners in the Gulag camps were imprisoned without trial; the GULAG was reduced in size following Stalin's death in 1953, in a period known as the Khrushchev Thaw. In 1960 the Ministerstvo Vnutrennikh Del ceased to function as the Soviet-wide administration of the camps in favor of individual republic MVD branches; the centralized detention facilities temporarily ceased functioning. Although the term Gulag referred to a government agency, in English and many other languages the acronym acquired the qualities of a common noun, denoting the Soviet system of prison-based, unfree labor. More broadly, "Gulag" has come to mean the Soviet repressive system itself, the set of procedu
Russia the Russian Federation, is a transcontinental country in Eastern Europe and North Asia. At 17,125,200 square kilometres, Russia is by far or by a considerable margin the largest country in the world by area, covering more than one-eighth of the Earth's inhabited land area, the ninth most populous, with about 146.77 million people as of 2019, including Crimea. About 77 % of the population live in the European part of the country. Russia's capital, Moscow, is one of the largest cities in the world and the second largest city in Europe. Extending across the entirety of Northern Asia and much of Eastern Europe, Russia spans eleven time zones and incorporates a wide range of environments and landforms. From northwest to southeast, Russia shares land borders with Norway, Estonia, Latvia and Poland, Ukraine, Azerbaijan, China and North Korea, it shares maritime borders with Japan by the Sea of Okhotsk and the U. S. state of Alaska across the Bering Strait. However, Russia recognises two more countries that border it, Abkhazia and South Ossetia, both of which are internationally recognized as parts of Georgia.
The East Slavs 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. Rus' disintegrated into a number of smaller states; the Grand Duchy of Moscow reunified the surrounding Russian principalities and achieved independence from the Golden Horde. By the 18th century, the nation had expanded through conquest and exploration to become the Russian Empire, the third largest empire in history, stretching from Poland on the west to Alaska on the east. Following the Russian Revolution, the Russian Soviet Federative Socialist Republic became the largest and leading constituent of the Union of Soviet Socialist Republics, the world's first constitutionally socialist state; the Soviet Union played a decisive role in the Allied victory in World War II, emerged as a recognized superpower and rival to the United States during the Cold War.
The Soviet era saw some of the most significant technological achievements of the 20th century, including the world's first human-made satellite and the launching of the first humans in space. By the end of 1990, the Soviet Union had the world's second largest economy, largest standing military in the world and the largest stockpile of weapons of mass destruction. Following the dissolution of the Soviet Union in 1991, twelve independent republics emerged from the USSR: Russia, Belarus, Uzbekistan, Azerbaijan, Kyrgyzstan, Tajikistan and the Baltic states regained independence: Estonia, Lithuania, it is governed as a federal semi-presidential republic. Russia's economy ranks as the twelfth largest by nominal GDP and sixth largest by purchasing power parity in 2018. Russia's extensive mineral and energy resources are the largest such reserves in the world, making it one of the leading producers of oil and natural gas globally; the country is one of the five recognized nuclear weapons states and possesses the largest stockpile of weapons of mass destruction.
Russia is a great power as well as a regional power and has been characterised as a potential superpower. It is a permanent member of the United Nations Security Council and an active global partner of ASEAN, as well as a member of the Shanghai Cooperation Organisation, the G20, the Council of Europe, the Asia-Pacific Economic Cooperation, the Organization for Security and Co-operation in Europe, the World Trade Organization, as well as being the leading member of the Commonwealth of Independent States, the Collective Security Treaty Organization and one of the five members of the Eurasian Economic Union, along with Armenia, Belarus and Kyrgyzstan; the name Russia is derived from Rus', a medieval state populated by the East Slavs. However, this proper name became more prominent in the history, the country was called by its inhabitants "Русская Земля", which can be translated as "Russian Land" or "Land of Rus'". In order to distinguish this state from other states derived from it, it is denoted as Kievan Rus' by modern historiography.
The name Rus itself comes from the early medieval Rus' people, Swedish merchants and warriors who relocated from across the Baltic Sea and founded a state centered on Novgorod that became Kievan Rus. An old Latin version of the name Rus' was Ruthenia applied to the western and southern regions of Rus' that were adjacent to Catholic Europe; the current name of the country, Россия, comes from the Byzantine Greek designation of the Rus', Ρωσσία Rossía—spelled Ρωσία in Modern Greek. The standard way to refer to citizens of Russia is rossiyane in Russian. There are two Russian words which are commonly
Krasnoyarsk Krai is a federal subject of Russia, with its administrative center in the city of Krasnoyarsk—the third-largest city in Siberia. Comprising half of the Siberian Federal District, Krasnoyarsk Krai is the largest krai in the Russian Federation, the second largest federal subject and the third largest subnational governing body by area in the world, after Sakha and the Australian state of Western Australia; the krai covers an area of 2,339,700 square kilometers, nearly one quarter the size of the entire country of Canada, constituting 13% of the Russian Federation's total area and containing a population of 2,828,187, or just under 2% of its population, per the 2010 Census. The krai lies in the middle of Siberia, occupies nearly half of the Siberian Federal District splitting it in half, stretching 3,000 km from the Sayan Mountains in the south along the Yenisei River to the Taymyr Peninsula in the north, it borders the Sakha Republic, the Tuva Republic, the Republic of Khakassia, Kemerovo and Tyumen Oblasts, the Kara Sea and Laptev Sea of the Arctic Ocean in the north.
The krai is located in the basin of the Arctic Ocean. The main rivers of the krai are the Yenisei, its tributaries: the Kan, the Angara, the Podkamennaya Tunguska, the Nizhnyaya Tunguska. There are several thousand lakes in the krai; the largest lakes include Beloye, Glubokoye, Khantayskoye, Lama, Pyasina and Yessey. The rivers and lakes are rich with fish; the climate is continental with large temperature variations during the year. For the central and southern regions where most of the krai's population lives, long winters and short, hot summers are characteristic; the territory of Krasnoyarsk Krai experiences conditions of three climate belts: Arctic and moderate. In the north there are less than 40 days with temperature above 10 °C, while in the south there are 110–120 such days; the average temperature in January is − 18 °C in the south. The average temperature in July is +20 °C in the south; the annual precipitation is 316 millimeters. Snow covers the central regions of the krai from early November until late March.
The peaks of the Sayan Mountains higher than 2,400–2,600 m and those of the Putorana Plateau higher than 1,000–1,300 m are covered with permanent snow. Permafrost is widespread in the north; the coastline contains a number of prominent peninsulas - from west to east the main ones are the Minina Peninsula, Mikhaylova Peninsula, the Taymyr Peninsula and the Khara-Tumus Peninsula. There are a large number of islands off the krai's coast, the most prominent of which are Sibiryakov Island, Nosok Island, Dikson Island, Vern Island, Brekhovskiye Island, Krestovskiy Island, the Kamennye Islands, the Zveroboy Islands, the Labyrintovye Islands, the Plavnikovye Islands, Kolosovykh Island, the Mona Islands, Rykacheva Island, Gavrilova Island and Prodolgovatyy Islands, the Nordenskiöld Archipelago, the Firnley Islands, the Heiberg Islands, Starokadomsky Island, Maly Taymyr Island, the Komsomolskaya Pravda Islands, the Faddey Islands, the Saint Peter Islands. There are a number of islands further out that fall under the administration of Krasnoyarsk Krai - the most prominent being Bolshoy Island, Sverdrup Island, the Izvestiy TSIK Islands, the Arkticheskiy Institut Islands, the Kirov Islands, Uyedineniya Island, Voronina Island, Severnaya Zemlya, Ushakov Island.
The highest point of the krai is Grandiozny Peak in the East Sayan Mountains at an elevation of 2,922 meters. According to archaeologists, the first people reached Siberia circa 40,000 BCE; the grave-mounds and monuments of the Scythian culture in Krasnoyarsk Krai belong to the 7th century BCE and are ones of the oldest in Eurasia. A prince's grave, the Kurgan Arshan, discovered in 2001, is located in the krai. Russian settlement of the area began in the 17th century. After the construction of the Trans-Siberian Railway the Russian colonization of the area increased. During both the Tsarist and the Bolsheviks' times the territory of Krasnoyarsk Krai was used as a place of exile of political enemies; the first leaders of the Soviet state, Vladimir Lenin and Joseph Stalin were exiled to what is now the krai in 1897–1900 and 1903, respectively. In Stalin's era numerous Gulag camps were located in the region. In 1822, the Yeniseysk Governorate was created with Krasnoyarsk as its administrative center that covered territory similar to that of the current krai.
On June 30, 1908, in the basin of the Podkamennaya Tunguska River, there occurred a powerful explosion most to have been caused by the air burst of a large meteoroid or comet fragment at an altitude of 5–10 kilometers above Earth's surface. The force of the explosion is estimated to be about 10–15 megatons, it killed thousands of reindeer. Krasnoyarsk Krai was created in 1934 after disaggregation of the West Siberian and East Siberian Krais and included Taymyr and Evenk Autonomous Okrugs and Khakas Autono