All articles starting with U
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Ustadh Sis
Ustadh Sis (استاذ سيس) was the leader of a revolt in Khurasan against the Abbasid caliphate, beginning in 767 and defeated by an army under al-Mahdi; he died in 768.
Ustaše
Ustaše: Croatian separatist, nationalist, terrorist movement founded around 1930 under Ante Pavelić (UHRO), fascist by the mid-1930s, which ruled the 1941–1945 Independent State of Croatia and ran the Jasenovac camp system.
Ustavnaya gramota (Constitutional Charter of the Russian Empire)
The Ustavnaya gramota (Уставная грамота Российской империи) was a draft constitution for the Russian Empire, prepared 1818 to 1820 under Emperor Alexander I and never promulgated, remaining secret for decades.
Ustedes los Ricos
Ustedes los ricos (You, the Rich), 1948 Mexican melodrama by Ismael Rodríguez, sequel to Nosotros los pobres, starring Pedro Infante as Pepe El Toro; second of the Pepe el Toro trilogy.
Ustekinumab
Ustekinumab (Stelara) is a human IgG1 monoclonal antibody blocking the IL-12/23 p40 subunit, approved 2008-2009 for plaque psoriasis, psoriatic arthritis, Crohn's disease, and ulcerative colitis, with biosimilars since 2024-2025.
Ústí nad Labem Region
Ústecký kraj (Ústí nad Labem Region), NUTS 3 CZ042, a northwestern Czech region bordering Germany (250 km), capital Ústí nad Labem; 5,334.6 km², about 800,000 people, coal-and-chemical industrial legacy now in post-coal energy transition.
Ustilaginales
Ustilaginales, the smut fungi, an order of Basidiomycota (Ustilaginomycetes) plant pathogens with over 1,200 species; Ustilago maydis causes corn smut, Ustilago nuda and U. tritici loose smut of barley and wheat.
Ustilaginomycetes
Ustilaginomycetes (Warming, 1884) is a class of smut fungi in Ustilaginomycotina, Basidiomycota: teliosporic, gastroid plant parasites with enlarged host interaction zones, split into Urocystales and Ustilaginales, mostly on grasses and sedges.
Ustilago
Ustilago, a genus of about 300 basidiomycete smut fungi (loose smuts) in Ustilaginaceae, parasitizing monocots; includes Ustilago maydis, the corn smut model and biotech host.
Ustrecha Tesserae
Ustrecha Tesserae is a 450 km-wide tessera on Venus, one of 65 named tile-like deformed terrains, among the planet's oldest exposed material, studied via Magellan radar roughness data.
Ustym Karmaliuk
Ustym Karmaliuk (1787–1835) was a Ukrainian serf who escaped Russian army conscription and led peasant rebel bands in Podillia for over two decades, remembered as the last haidamaka.
Ustyug Annunciation
The Ustyug Annunciation (Устюжское Благовещение) is a large Russian icon of the Annunciation painted in Novgorod in the first third of the 12th century, now in the State Tretyakov Gallery.
Usual judgment
Usual judgment is a tie-breaking rule for majority judgment voting, defined by Fabre, ranking median-tied candidates by the normalized difference (p−q)/(1−p−q) between voters grading above and below the median.
Usuard
Usuard, also spelled Husuard, was a Benedictine monk of Saint-Germain-des-Prés in Paris who died between 875 and 877, best known for his widely copied martyrology.
Usuerva
Usuerva (Hosuerbas) was a Gallo-Roman road station, a mutatio on the Via Aquitania in Gallia Narbonensis, 15-16 miles west of Narbonne, probably near Lézignan in the Aude, France.
Usufruct
Usufruct (ususfructus): civil-law real right to use and enjoy another's property and its fruits while preserving its substance. Roman origin, quasi-usufruct of consumables, split with bare ownership, modern code rules, duration limits, and EU cases.
Usui Pass Railway Heritage Park
Usui Pass Railway Heritage Park (碓氷峠鉄道文化むら), a railway theme park in Annaka, Gunma, opened 1999 on the former Yokokawa depot site, preserving the 1893–1997 Usui Line with 30-plus locomotives and EF63 driving experiences.
Usul
Usûl is the metric system of Turkish music: fixed, named rhythmic cycles of strong, semi-strong, and weak beats, one of its two primary elements alongside makam.
Usuli school
The Usuli school is the dominant school of Twelver Shi'i jurisprudence, holding that qualified jurists (mujtahids) derive law through rational inference (ijtihad) and that lay believers must emulate them.
Usumacinta
The Usumacinta is a Mesoamerican river about 1,100 km long, formed in Guatemala and flowing north through Chiapas and Tabasco to the Gulf of Mexico.
Usurpation of al-Adil (1200)
The usurpation of al-Adil (تولي العادل) was the seizure of Egypt by al-Adil, Saladin's brother, from his nephew al-Afdal in 1199–1200, followed by al-Adil's entry into Cairo.
Usurpation of Arunasva
The usurpation of Arunasva (अरुणास्व) was a minister's seizure of power in Magadha after King Harsha's death in 647, ending in his defeat and capture by China.
Usurpation of Bahram Chobin
The usurpation of Bahram Chobin (شورش بهرام چوبین) was the Sasanian general Bahram Chobin's seizure of the throne from Hormizd IV, reigning as Bahram VI from 590 to 591.
Usurpation of Baybars al-Jashnakir
The usurpation of Baybars al-Jashnakir was the 1308–1309 deposition of Mamluk sultan al-Nasir Muhammad, who withdrew to Karak, and Baybars' elevation to sultan of Egypt.
Usurpation of Hemu
The Usurpation of Hemu (हेमू का राज) was Hemu's October 1556 capture of Delhi and Agra from the Mughals and his coronation as Vikramaditya, ending at the Second Battle of Panipat.
Usurpation of Huan Xuan
The Usurpation of Huan Xuan (桓玄篡晉) was Huan Xuan's 403 seizure of the Jin throne, deposing Emperor An; his regime lasted only months before Liu Yu's revolt destroyed it.
Usurpation of Jayakatwang
The Usurpation of Jayakatwang (Pemberontakan Jayakatwang) was the 1292 rebellion by Jayakatwang against Kertanegara, king of Singhasari, whose palace he seized and killed the king.
Usurpation of Maxtla and assassination of Chimalpopoca
The usurpation of Maxtla and assassination of Chimalpopoca (Muerte de Chimalpopoca) were connected events of 1426 to 1428 in the Basin of Mexico, ending in the Tepanec War.
Usurpation of Pushyamitra Shunga
The usurpation of Pushyamitra Shunga (पुष्यमित्र शुंग का शासन-परिवर्तन) was the assassination of Maurya king Brihadratha by his commander-in-chief Pushyamitra at Pataliputra around 185 BCE, founding the Shunga dynasty.
Usurpation of Sakura
The Usurpation of Sakura was the seizure of the Mali Empire's throne by Sakura, a freed slave of the royal court, around 1285, after the killing of Abu Bakr.