Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the seventh-most populous city in Europe. Kyiv is an important industrial, scientific, educational, and cultural center in Eastern Europe. It is home to many high-tech industries, higher education institutions, and historical landmarks. The city has an extensive system of public transport and infrastructure, including the Kyiv Metro. The city's name is said to derive from the name of Kyi, one of its four legendary founders. During its history, Kyiv, one of the oldest cities in Eastern Europe, passed through several stages of prominence and obscurity. The city probably existed as a commercial center as early as the 5th century. A Slavic settlement on the great trade route between Scandinavia and Constantinople, Kyiv was a tributary of the Khazars, until its capture by the Varangians (Vikings) in the mid-9th century. Under Varangian rule, the city became a capital of Kievan Rus', the first East Slavic state. Completely destroyed during the Mongol invasions in 1240, the city lost most of its influence for the centuries to come. It was a provincial capital of marginal importance in the outskirts of the territories controlled by its powerful neighbours, first Lithuania, then Poland. The city prospered again during the Russian Empire's Industrial Revolution in the late 19th century. In 1918, when the Ukrainian People's Republic declared independence from Russian Republic, Kyiv became its capital. From the end of the Polish-Soviet War in 1921, Kyiv was a city of Soviet Ukraine, and made its capital in 1934. The city suffered significant destruction during World War II but quickly recovered in the postwar years, remaining the Soviet Union's third-largest city. Following the collapse of the Soviet Union and Ukrainian independence in 1991, Kyiv remained Ukraine's capital and experienced a steady influx of ethnic Ukrainian migrants from other regions of the country. During the country's transformation to a market economy and electoral democracy, Kyiv has continued to be Ukraine's largest and wealthiest city. Its armament-dependent industrial output fell after the Soviet collapse, adversely affecting science and technology, but new sectors of the economy such as services and finance facilitated Kyiv's growth in salaries and investment, as well as providing continuous funding for the development of housing and urban infrastructure. Kyiv emerged as the most pro-Western region of Ukraine; parties advocating tighter integration with the European Union dominate during elections.
The first known humans in the region of Kyiv lived there in the late paleolithic period (Stone Age). The population around Kyiv during the Bronze Age formed part of the so-called Trypillian culture, as evidenced by artifacts from that culture found in the area. During the early Iron Age certain tribes settled around Kyiv that practiced land cultivation, husbandry and trading with the Scythians and ancient states of the northern Black Sea coast. Findings of Roman coins of the 2nd to the 4th centuries suggest trade relations with the eastern provinces of the Roman Empire. The people of the Zarubintsy culture are considered the direct ancestors of the ancient Slavs who later established Kyiv. Notable archaeologists of the area around Kyiv include Vikentiy Khvoyka.
Scholars continue to debate when the city was founded: the traditional founding date is 482 CE, so the city celebrated its 1,500th anniversary in 1982. Archaeological data indicates a founding in the sixth or seventh centuries, with some researchers dating the founding as late as the late 9th century, Legendary Kyi, Shchek, Khoryv and Lybid in the Radziwiłł Chronicle There are several legendary accounts of the origin of the city. One tells of members of a Slavic tribe (Eastern Polans), brothers Kyi (the eldest, after whom the city was named), Shchek, Khoryv, and their sister Lybid, who founded the city (See the Primary Chronicle). Another legend states that Saint Andrew passed through the area in the 1st century. Where the city is now he erected a cross, where a church later was built. Since the Middle Ages an image of Saint Michael has represented the city as well as the duchy. Hungarians at Kyiv in 830 during the times of the Rus' Khaganate There is little historical evidence pertaining to the period when the city was founded. Scattered Slavic settlements existed in the area from the 6th century, but it is unclear whether any of them later developed into the city. On the Ptolemy world map there are several settlements indicated along the mid-stream of Borysthenes, among which is Azagarium, which some historians believe to be the predecessor to Kyiv. However, according to the 1773 Dictionary of Ancient Geography of Alexander Macbean, that settlement corresponds to the modern city of Chernobyl. Just south of Azagarium, there is another settlement, Amadoca, which is supposed as the capital of Amadoci people living in area between marshes of Amadoca in the west and Amadoca mountains in the east. Another name for Kyiv mentioned in history, the origin of which is not completely clear, is Sambat, which apparently has something to do with the Khazar Empire. The Primary Chronicle says the residents of Kyiv told Askold "there were three brothers Kyi, Shchek, and Khoriv. They founded this town and died, and now we are staying and paying taxes to their relatives the Khazars". In De Administrando Imperio, Constantine Porphyrogenitus mentions a caravan of small cargo boats which assembled annually, and writes, "They come down the river Dnieper and assemble at the strong-point of Kyiv (Kioava), also called Sambatas". At least three Arabic-speaking 10th century geographers who traveled the area mention the city of Zānbat as the chief city of the Russes. Among them are ibn Rustah, Abu Sa'id Gardezi, and an author of the Hudud al-'Alam. The texts of those authors were discovered by Russian orientalist Alexander Tumansky. The etymology of Sambat has been argued by many historians, including Grigoriy Ilyinsky, Nikolay Karamzin, Jan Potocki, Nikolay Lambin, Joachim Lelewel, and Guðbrandur Vigfússon. The Primary Chronicles state that at some point during the late 9th or early 10th century Askold and Dir, who may have been of Viking or Varangian descent, ruled in Kyiv. They were murdered by Oleg of Novgorod in 882, but some historians, such as Omeljan Pritsak and Constantine Zuckerman, dispute that, arguing that Khazar rule continued as late as the 920s (among notable historical documents are the Kyivan Letter and Schechter Letter). Other historians suggest that Magyar tribes ruled the city between 840 and 878, before migrating with some Khazar tribes to the Carpathian Basin. The Primary Chronicles also mention movement of Hungarians pass Kyiv. To this day in Kyiv exists a place known as "Uhorske urochyshche" (Hungarian place), which is better known as Askold's Grave. According to the aforementioned scholars the building of the fortress of Kyiv was finished in 840 under the leadership of Keő (Keve), Csák, and Geréb, three brothers, possibly members of the Tarján tribe. The three names appear in the Kyiv Chronicle as Kyi, Shchek, and Khoryv and may be not of Slavic origin, as Russian historians have always struggled to account for their meanings and origins. According to Hungarian historian Viktor Padányi, their names were inserted into the Kyiv Chronicle in the 12th century, and they were identified as old-Russian mythological heroes. The Baptism of Kyivans, a painting by Klavdiy Lebedev The city of Kyiv stood on the trade route between the Varangians and the Greeks. In 968 the nomadic Pechenegs attacked and then besieged the city. By 1000 CE the city had a population of 45,000. In March 1169, Grand Prince Andrey Bogolyubsky of Vladimir-Suzdal sacked Kyiv, leaving the old town and the prince's hall in ruins. He took many pieces of religious artwork - including the Theotokos of Vladimir icon - from Vyshhorod. In 1203, Prince Rurik Rostislavich and his Kipchak allies captured and burned Kyiv. In the 1230s, the city was besieged and ravaged several times by different Rus princes. The city had not recovered from these attacks when, in 1240, the Mongol invasion of Rus', led by Batu Khan, completed the destruction of Kyiv.