All articles starting with U

Uruguayan War

Uruguayan War (1864–1865), also Guerra contra Aguirre: Brazil and Venancio Flores's Colorados overthrew Uruguay's Blanco government; climax was the siege of Paysandú, ending with Uruguay joining the Triple Alliance.

Uruk

Uruk (Biblical Erech, modern Warka, Iraq) was the leading southern Mesopotamian city of the 4th millennium BCE, center of the Uruk period and expansion, birthplace of cuneiform writing, bureaucracy, and monumental architecture, and setting of the Gilgamesh epic.

Uruk King List

The Uruk King List, also known as King List 5, is a Late Babylonian tablet from Uruk, Iraq, recording the reign lengths of kings from Kandalanu to Seleucus II Callinicus.

Uruk period

Uruk period: late 4th-millennium BCE Mesopotamian era named for Uruk (Warka), when the first cities, monumental architecture, cylinder seals, and proto-cuneiform writing emerged, with the Uruk expansion across the Near East.

Uruk Sulcus

Uruk Sulcus is a 2,200 km-wide grooved bright-terrain region on Jupiter's moon Ganymede, IAU-named in 1979 after Gilgamesh's city; first Galileo high-resolution target showing horst-and-graben to tilt-block faulting and dextral transpression.

Uruk Trough

The Uruk Trough is a carved limestone trough from Uruk in southern Mesopotamia, dated about 3300–3000 BC and now in the British Museum, with reliefs of sheep before a reed hut symbolizing the goddess Inanna.

Urukagina

Urukagina, also read Uruinimgina or Irikagina, was the last ruler of the Sumerian city-state of Lagash, reigning ten years in the 24th century BC and remembered for his Reform Texts.

Urumeans

The Urumeans were a people of the Upper Euphrates region, first recorded under Tiglath-pileser I of Assyria, whose country Urumu, called Urmie in Urartian sources, lay near modern Mush.

Urumi

The urumi, also called surul pattai or ethunu kaduwa, is a long, flexible, whip-like sword with a double-edged blade, worn coiled at the waist and central to the Kalaripayattu martial art of Kerala.

Urumi (film)

Urumi (ഉറുമി) is a 2011 Malayalam historical action film directed by Santosh Sivan, starring Prithviraj Sukumaran as Kelu Nayanar plotting to kill Vasco da Gama in 1524 Kerala.

Ürümqi (乌鲁木齐)

Ürümqi (乌鲁木齐, Wulumuqi), capital of Xinjiang Uygur Autonomous Region, China; farthest inland major city from any sea. Founded 1763 as Dihua; 4.08 million residents, 7 districts, arid oasis city on the Tianshan northern slope.

Urumqi Municipal Water Amusement Park

水上乐园 (سۇ ئۈستى باغچىسى), the Urumqi Municipal Water Amusement Park, is a 1,302-mu municipal park in Tianshan District, Urumqi, opened 1987 around an artificial lake, free since 2007, with rides, the 2022 欢乐世界 zoo, and giant pandas.

Urup

Urup (Uruppu, 得撫島) is the fourth largest island of the Greater Kuril Ridge in the southern Kuril chain, Sea of Okhotsk; volcanic, 1,450 sq km, Russian since 1945, formerly Russo-Japanese border island.

Ururu

УРУРУ (Ururu) is an outdoor amusement park opened 24 June 2020 in a forest at Stare Selo, 12 km from Lviv, Ukraine, on the Bukhta Vikinhiv complex: 42 attractions, 22 animatronic dinosaurs, net park, tubing, water town.

Oct 22, 2026

Urus Khan

Urus Khan, recorded as Muhammad in Arab sources, was a khan of the White Horde who ruled from Sygnak until 1377 and was the ancestor of the Kazakh khans.

Urusei Yatsura (うる星やつら)

Urusei Yatsura (うる星やつら) is Rumiko Takahashi's debut manga, a sci-fi romantic comedy about Moroboshi Ataru and the alien oni girl Lum, serialized in Weekly Shōnen Sunday 1978–1987, adapted into a 1981–1986 TV anime and a 2022–2024 remake.

Oct 3, 2026

Urusei Yatsura 2: Beautiful Dreamer (うる星やつら2 ビューティフル・ドリーマー)

Urusei Yatsura 2: Beautiful Dreamer (うる星やつら2 ビューティフル・ドリーマー) is a 1984 anime film by Mamoru Oshii, second theatrical adaptation of Rumiko Takahashi's manga, in which Tomobiki-cho is trapped in an endlessly repeating dream before the school festival.

Oct 3, 2026

Urusei Yatsura: Only You (うる星やつらオンリー・ユー)

Urusei Yatsura: Only You (うる星やつらオンリー・ユー) is the first theatrical film of Rumiko Takahashi's Urusei Yatsura, released February 11, 1983 by Toho; Mamoru Oshii's feature debut, about Ataru's betrothal to the alien queen Elle.

Oct 3, 2026

Urusei Yatsura: The Movie

Urusei Yatsura: Only You (うる星やつらオンリー・ユー), 1983 Toho anime film, first Urusei Yatsura movie and Mamoru Oshii's theatrical debut; alien Elle claims Ataru via a childhood shadow-stepping betrothal.

Urushiol

Urushiol is an oily mixture of alk(en)ylcatechols in Toxicodendron plants (poison ivy, oak, sumac) and the lacquer tree; a pro hapten oxidized in skin, causing T-cell-mediated type IV contact dermatitis in 10–50 million Americans yearly.

Urushiol-induced contact dermatitis

Urushiol-induced contact dermatitis, also called Toxicodendron or rhus dermatitis, is a T cell-mediated type IV allergic rash from urushiol oil in poison ivy, oak, and sumac, affecting 10-50 million Americans yearly, with onset 12-72 hours after contact.