Sheikh Ahmed ( Turki and Persian شیخ احمد; died 1529) was the last Khan of the Great Horde , a remnant of the Golden Horde .
41-723: He was one of the three sons of Ahmed Khan bin Küchük , the man who lost Russia in 1480. After the assassination of Ahmed Khan in 1481, his sons feuded for power and it only further weakened the Horde. The Horde, then allied with the Grand Duchy of Lithuania , was fighting with the Crimean Khanate , allied with the Grand Duchy of Moscow . In 1500, the Muscovite–Lithuanian War resumed. Lithuania once again allied with
82-720: A bargaining chip in negotiations with the Crimean Khanate: if the Khanate did not behave, Sheikh Ahmed would be released and would resume his war with the Khanate. Meñli I Giray became a reluctant ally of Lithuania. Sheikh Ahmed was held in Vilnius Upper Castle , Trakai and moved to Kaunas Castle after an escape attempt. After the Battle of Olshanitsa in January 1527, Sheikh Ahmed was released from prison. It
123-545: A conflict became inevitable. Panic set in, as both sides suddenly turned, deciding to flee rather than fight in the tradition of Genghis Khan. The Horde's retreat meant that the last of the conflict between Eurasians was over. The Mongols' last possessions were in Kazan , Astrakhan , and Crimea . Ivan III, Russia's ruler, finally freed it from Tatar - Mongol overlords. On 6 January 1481, Ahmed Khan and his men were killed by Siberian Khan , Ibak Khan of Tyumen and Nogays at
164-417: A large hatchery of carp has successfully operated since 1967. On the banks of the river, in the floodplain wetlands, there are abundant water frogs , toads (especially green toad ), smooth and great crested newts and less common grass snake , dice snake and European pond terrapin . Human activities, mainly cultivation of the steppes, resulted in the disappearance of animals formerly common in
205-401: A member of an Asian royal house is a stub . You can help Misplaced Pages by expanding it . This article related to Central Asian history is a stub . You can help Misplaced Pages by expanding it . Seversky Donets The Seversky Donets ( Russian : Се́верский Доне́ц ) or Siverskyi Donets ( Ukrainian : Сіверський Донець , lit. 'Northern Donets'), usually simply called
246-510: A number of attempts were made to revive shipping, in particular, for the sake of the possibility of water transportation of minerals in the Donbass. One of the enthusiasts of the project was D. I. Mendeleev, who wrote about the need to “arrange the Donets […] for our Russian needs […] because the Donets, due to the importance of the interests involved in it, is most necessary”[39]. The developer of
287-618: Is 25 m /s (880 cu ft/s) near the source and 200 m /s (7,100 cu ft/s) at the confluence to the Don. The Donets originates on the Central Russian Upland , near Podolkhi village, Prokhorovka area, north of Belgorod , at an elevation of 200 m (660 ft) above sea level. Its basin contains over 3000 rivers, of which 425 are longer than 10 km (6.2 mi) and 11 are longer than 100 km (62 mi); 1011 of those rivers directly flow into
328-606: Is also another, small Tanais, which originates in the Seversky Principality (for this reason it is called Donets Seversky) and flows into the large Tanais above Azov ". The Donets is the largest river in eastern Ukraine and the largest tributary of the Don . Its total length is 1,053 km (654 mi) and the basin area is 98,900 km (38,200 sq mi). Most of the river's length 950 km (590 mi) stretches across Ukraine. The average annual flow
369-604: Is contaminated by industrial and communal wastes of Belgorod, Izium and Shebekino cities, but the water is partially purified through the Pechenizke Reservoir. The density of plants and thus the contamination increase downstream in Donetsk and Luhansk areas, especially around Lysychansk and Sievierodonetsk , about 400 km from the mouth. Some tributaries of the Donets, such as Kozenyi Butt, Bakhmut and Lugan are so polluted that consuming fish caught there
410-518: Is dangerous. The purest segment of Donets is between the source and Belgorod, and between the Pechenizke Reservoir and Chuhuiv . Average water salinity is 650–750 mg/L, and it increases in winter to 1000 mg/L mostly due to industrial wastewater. The Donets hosts 44 species of fish, predominantly small fishes such as European perch , rutilus and common rudd . Medium and large species include bream , perch , catfish and pike and are becoming increasingly rare. Near Pechenizke Reservoir
451-551: Is dissected by gullies. The left bank is more flat, contains numerous swamps, lakes and oxbow lakes , the largest of which is lake Lyman. The river is meandering, especially above the Oskil tributary. Upstream, above Belgorod, the river contains several dams and small reservoirs. Downstream, below the confluence with the Wolf River (Volchiya River), there is the Pechenizke Reservoir (volume 86 km ), which supplies water to
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#1732780807719492-630: Is said that he managed to seize power in the Astrakhan Khanate . He died around 1529. Ahmed Khan bin K%C3%BCch%C3%BCk Ahmed Khan bin Küchük ( Turki and Persian : احمد خان) was Khan of the Great Horde from 1465 to 1481. In 1465, Ahmed Khan seized power in the Horde by rising against his brother Mahmud bin Küchük , who had been its ruler since 1459. In 1472, Ahmed Khan entered into alliance with
533-629: The Donets , is a river on the south of the East European Plain . It originates in the Central Russian Upland , north of Belgorod , flows south-east through Ukraine ( Kharkiv , Donetsk and Luhansk Oblasts ) and then again through Russia ( Rostov Oblast ) to join the river Don , about 100 km (62 mi) from the Sea of Azov . The Donets is the fourth-longest river in Ukraine, and
574-611: The Polish king Casimir IV against Ivan III of Russia . In 1476, Ahmed Khan suggested to Ivan III that he should recognize him as his overlord. However, the balance of forces was not in the Horde's favour. In 1480, Ahmed Khan organized another military campaign against Muscovy, which would result in the Great Stand on the Ugra River , 150 miles from Moscow. They stood off shouting at one another on opposite banks for weeks before
615-620: The War in Donbas , Luhansk Oblast was roughly split along the river between the Luhansk People's Republic , which controlled most of the portion of the oblast south of the Donets, and the Ukrainian government, which controlled most of the territory north of the Donets. In May 2022, Russian attempts to cross the Donets above Lysychansk were stopped in the operationally decisive Battle of
656-509: The 18th century, when old oaks were cut down along its banks. The industrial development of the 19th century reduced the groundwater levels of the basin. This resulted in shallowing of the river and slowed navigation. Until the mid-19th century, the river was rich in fish which population rapidly declined since then. The water quality is graded as level IV (polluted) to V (dirty). The main pollutants are fertilizers , petroleum , phenols , zinc , chromium and copper . In Kharkiv Oblast, water
697-539: The Donets. These rivers are mostly fed by melting snow, and thus the water supply is uneven during the year. The spring flood lasts about two months, from February to April – during this period the water level rises by 3 to 8 m (9.8 to 26.2 ft). Excessive flooding is rare due to numerous artificial water reservoirs constructed along the river. The width of the river mostly ranges between 30 and 70 m (98 and 230 ft), sometimes reaching 100–200 m (330–660 ft) and even 4 km (2.5 mi) in
738-732: The Great Horde. In 1501, Khan Sheikh Ahmed attacked Muscovite forces near Rylsk , Novhorod-Siverskyi , and Starodub . According to the accounts of the Bychowiec Chronicle Sheikh Ahmed gave the rule of these occupied cities to the Lithuanian diplomat of Ruthenian origin Michał Chalecki. These territories were held by the Grand Duchy of Lithuania prior to the war of 1500-1503. Sheikh Ahmed would spend
779-583: The Kharkiv Oblast. North of Izium , there are still broadleaf forests, and pine forests are found near Chuhuiv . Many species of wild plants survive near floodplain wetlands. These include willow , downy birch , alder and krushinnik. Along the river banks, there are cane , swamp horsetail, carex , kizlyak, swamp sabelnik and other types of grass. The Donets is regarded as one of the most scenic rivers of East European Plain and contains many hiking and biking routes along its banks. Canoe rafting
820-469: The Kochetok Reservoir was created and coupled to the water system of Kharkiv. By the 1950s, this measure proved insufficient, and in the 1960s, Pechenizke Reservoir was constructed in place of the Kochetok Reservoir. It has with the capacity of 400 million m and provides about 75% of water consumed by Kharkiv. To supply water to southern Donbas and Donetsk, the 130-km long Donets-Donbas channel
861-478: The Siverskyi Donets . Being one of the largest rivers in Ukraine, the Donets is very intensively used in farming and industry. Ukraine alone uses more than 2 km (0.48 cu mi) of river waters per year, half of which is returned as polluted discharges; this consumption effectively reduces river runoff by 32 m /s (1,100 cu ft/s). Donets suffered greatly even back in
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#1732780807719902-453: The ages, the river banks were populated by tribals of various cultures, including Mousterian , Yamna , Catacomb , Scythian , Alan , Khazar and later Slavic cultures. Many of the related tribals had nomadic lifestyle characteristic of Kipchak people , Golden Horde and later of Cossacks . The river flows through the historic lands of Sloboda Ukraine as well as the lands of Don River Host. The many Cossacks became later assimilated into
943-408: The basin in the 1960s brought insectivorous birds new to this area, such as Streptopelia , European magpie and shrikes . From the traditional bird types, still common are several species of ducks, crows, Charadriiformes , Podiceps , great reed warbler and much less common are herons and storks . Only 12 individuals of demoiselle cranes remain in the area, near Sviatohirsk city. During
984-408: The basin, such as tarpan , steppe antelope, saiga antelope , marmots and others. Back in the 1960s–1970s, especially near Oskil River, it was not unusual to meet bobak marmot , Eurasian deer , wild boar and Russian desman . Current mammals of the basin include European beaver , Dipodidae , suslik , mice, European otter , European mink , weasel and bats . The number of bird species of
1025-410: The city of Donetsk ( Rostov Oblast ), 222 km from the mouth. Navigation on the last section is supported by six dams, built from 1911 to 1914. Each consists of a 100–150-meter (330–490 ft) long concrete dam and a single-chamber sluice, 100 m (330 ft) long, 17 m (56 ft) wide and 2.5 m (8 ft 2 in) deep. At the end of the 19th - beginning of the 20th centuries,
1066-725: The city of Kharkiv . Below the Pechenizke Reservoir, the Donets is fed by the Udy and by its largest tributary, the Oskil. There the valley widens and its floodplain creates numerous oxbow lakes. Within Ukraine, the river flows between the Cisdesna plateau and the Donets lowland. In its middle, the river is partly fed by the Dnieper waters, which are brought though the Dnieper–Donbas–Seversky Donets channels which provide water to
1107-633: The coal industry of the Donets Basin (usually called the Donbas). Near the Russian city of Donetsk (Rostov oblast) , the river crosses the Donets Ridge and flows in a narrow valley with steep and rocky slopes. In the lower part of the Donets lowland, the flow is interrupted by sluices and is slow. At the delta, it splits into three distributaries . At present, the Donets is navigable up to
1148-523: The dams and their old age slowed the navigation of the river, which is currently rather limited. The river played a crucial role for its ancient settlers as a source of water and food, means of transportation and trade route. The first archaeological evidence of settlers relates to Cheulean and Acheulean periods of Lower Paleolithic through stone tools (axes) found on the river banks near Izium city of Kharkiv Oblast and in Luhansk Oblast. Over
1189-511: The early medieval times. In the 2nd century CE Ptolemy knew the river Don, into which the Donets flows, as Tanais , and Western Europeans recognized that the Don had a significant tributary which they called either the small Tanais or Donetz . The Slavic name of Seversky Donets derived from the fact that the river originates from the land of Severians . As the Italian-Polish chronicler Alexander Guagnini (1538–1614) wrote: "There
1230-524: The end of the 18th century, and the mill dams interrupted navigation on the river. Industrialization in the 20th century shifted interests to mineral exploitation in Donbas , with water-hungry plants concentrated mostly in Kyiv , Luhansk and Donetsk . Already by the 1930s, Kharkiv, Donetsk and Luhansk were lacking water forcing the authorities to gradually create a network of canals and reservoirs. In 1936,
1271-434: The fall of the river is 195 m (640 ft) with the average gradient of 0.18 m/km. The flow is slow, between 0.15 m/s (0.49 ft/s) at Chuhuiv and 1.41 m/s (4.6 ft/s) near Lysychansk . The river valley is wide: from 8–10 km (5.0–6.2 mi) in the upper part and up to 20–26 km (12–16 mi) downstream, and is asymmetrical. The right bank is usually high, sometimes with chalk cliffs, and
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1312-561: The following winter of 1501-1502 camping between Kyiv and Chernihiv . Lithuanian Grand Duke Alexander Jagiellon was preoccupied with his succession in the Kingdom of Poland and did not participate in the campaign, failing to provide necessary support. A harsh winter combined with burning of the steppe by Meñli I Giray , Khan of the Crimean Khanate, resulted in famine among Sheikh Ahmed's forces. Many of his men deserted him and
1353-531: The largest in eastern Ukraine , where it is an important source of fresh water. It gives its name to the Donets Basin, known commonly as the Donbas , an important coal-mining and industrial region in Ukraine. The names Don and its diminutive Donets are derived from Iranic , Sarmatian Dānu "the river". Scytho-Sarmatians inhabited the areas to the north of the Black Sea from 1100 BC into
1394-496: The migratory season, the region is visited by greylag and black geese. Banks of the river used to contain groves of trees, which were cut during the 18th–19th centuries. Some of the trees were used for shipbuilding during the Russian-Turkish wars in the time of Peter I . By the 20th century, most meadows along the river banks were converted into farmers' fields. Only a small part of the old groves remains, mainly in
1435-633: The mouth of the Donets River . Ahmed Khan's wife was the Timurid princess Badi' al-Jamal, a sister of Sultan Husayn Bayqara of Khorasan . Through this marriage he had two sons, Mahmud Khan and Bahadur Khan, as well as a daughter, Khanzada Khanum. However, Badi' al-Jamal eventually left the Golden Horde and returned with her children to her brother's court in Herat . This biography of
1476-594: The project was the Russian hydraulic engineer Nestor Platonovich Puzyrevsky, known for his contribution to the Volga-Don Canal project. In 1903-1904, he conducted a detailed study of the channel of the Seversky Donets and proposed a project to restore the navigation of the Seversky Donets to the city of Belgorod, which involves the construction of a large number of locks were interrupted by World War I , Russian Civil War and lack of funds. The design of
1517-625: The remainder was defeated on the Sula River in June 1502. Sheikh Ahmed was forced into exile. He sought refuge at the Ottoman Empire , Nogai Horde or an alliance with the Grand Duchy of Moscow, before turning to the Grand Duchy of Lithuania. Instead of helping its former ally, the Grand Duchy imprisoned Sheikh Ahmed. He was arrested in Kyiv in late 1503 or early 1504. Sheikh Ahmed was used as
1558-476: The reservoir area. The river bottom is sandy and uneven, with the depth varying between 0.3 and 10 m (1 ft 0 in and 32 ft 10 in) and the average value of 2.5 m (8 ft 2 in). The river freezes from around mid-December until late March and is covered by 20–50 cm (7.9–19.7 in) thick ice. It flows into the Don 218 km (135 mi) from the latter's mouth, at an elevation of 5.5 m (18 ft) above sea level; thus
1599-460: The river basin reduced sharply over the past 100–150 years. The disappeared species include steppe eagle , tirkusha, sociable lapwing , bustard , black and winged lark . Less common are geese, swans, golden eagle , white-tailed eagle , peregrine falcon , honey buzzard and osprey . The reduction is mainly caused by the destruction of forests, especially old groves along the river banks. The creation of artificial forest belts ( windbreaks ) in
1640-412: The strengthening Russian Empire, which had rebuilt and reinforced the fortress of Belgorod and cities of Kyiv , Izium , Luhansk , Chuhuiv and others in order keep defensive lines against the raids of nomads from the south-east. Later, the protective role of the river basin gave way to economic needs. In the 18th–19th centuries, the river was extensively used for watermills, which numbered by hundreds by
1681-586: Was built around 1958 starting near Raigorodok city, and in compensation, the Dnieper-Donbas channel was created to supply water from Dnieper River to the upstream of the Donets via the Bereka River. As a result of the industrial activity, the wild nature of Donets Basin transformed into an industrial settlement. After the breakup of the USSR, most of the basin territory became part of Ukraine. During