All articles starting with O
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Okita Sōji (沖田総司)
Okita Sōji (沖田総司) was a Japanese samurai who captained the first unit of the Shinsengumi in Kyoto, fought at the Ikedaya Incident of 1864, and died of tuberculosis in 1868.
Okja (옥자)
Okja (옥자) is Bong Joon Ho's 2017 Netflix film about girl Mija rescuing her genetically engineered superpig from the Mirando Corporation; $50 million budget, Cannes 2017 Competition controversy, starring Tilda Swinton, Jake Gyllenhaal, Paul Dano, Ahn Seo-hyun.
Okjeo
Okjeo (沃沮) was an ancient people and polity along the northeast Korean coast, from South Hamgyong Province to the Tumen River basin, with branches Dongokjeo and Bukokjeo.
Okkadu (ఒక్కడు)
Okkadu (ఒక్కడు, "One Person") is a 2003 Telugu romantic sports action drama directed by Gunasekhar, starring Mahesh Babu, Bhumika Chawla, and Prakash Raj; a Sankranti blockbuster that won eight Nandi Awards and was remade as Ghilli and Tevar.
Okkadu Chalu
Okkadu Chalu (ఒక్కడు చాలు) is a Telugu action drama directed by Ravi Raja Pinisetty, starring Rajasekhar as ACP Surya with Rambha, Sanghavi, and Vishnuvardhan; music by Koti, dated 2000 or 2005 by different databases.
Okkervil River
Okkervil River is an indie rock band formed in 1998 in Austin, Texas, led by Will Sheff and named for a Tatyana Tolstaya story; known for Black Sheep Boy (2005), The Stage Names, and nine studio albums through In the Rainbow Rain (2018).
Okko's Inn (若おかみは小学生!)
Okko's Inn (若おかみは小学生！, Wakaokami wa Shogakusei!) is a 2018 Madhouse/DLE anime film directed by Kitaro Kosaka, adapted from Hiroko Reijo's novels, about orphaned Okko training as a young innkeeper at Haru no Ya; Annecy 2018 selection and Japan Media Arts Festival Excellence Award winner.
Okkur Masattiyar
Okkur Masattiyar (ஒக்கூர் மாசாத்தியார்) was a Sangam-era Tamil woman poet from Okkur village in Pandya country, in present-day Sivagangai district, Tamil Nadu; eight or nine of her poems survive in the Sangam anthologies.
Oklab color space
Oklab (OKLab) is a perceptual color space designed by Björn Ottosson and introduced in 2020, predicting lightness, chroma, and hue better than CIELAB while remaining simple to compute.
Oklahoma
Oklahoma, the 46th U.S. state (admitted November 16, 1907), was formed by merging Oklahoma Territory and Indian Territory after the 1889 land runs; capital area Oklahoma City, population about 4.1 million.
Oklahoma City
Oklahoma City, capital and largest city of Oklahoma, founded in the Land Run of April 22, 1889; became state capital by a June 11, 1910 vote, boomed on 1928 oil, and rebuilt downtown through the MAPS sales-tax program from 1993.
Oklahoma City Blue
Oklahoma City Blue, NBA G League affiliate of the Oklahoma City Thunder based at Paycom Center; won the 2023-24 G League championship and is coached by Daniel Dixon.
Oklahoma City bombing
Oklahoma City bombing: April 19, 1995 truck bombing of the Alfred P. Murrah Federal Building by Timothy McVeigh and Terry Nichols; 168 killed, deadliest homegrown terrorist attack in U.S. history.
Oklahoma City Comets
Oklahoma City Comets, formerly the OKC Dodgers, RedHawks, and 89ers: Triple-A Pacific Coast League affiliate of the Los Angeles Dodgers since 2015, named for Mickey Mantle, the 'Commerce Comet'; plays at 9,000-seat Chickasaw Bricktown Ballpark.
Oklahoma City National Memorial
Oklahoma City National Memorial, a National Park Service-affiliated memorial and museum at the Murrah Federal Building bombing site, honoring the 168 killed on April 19, 1995, with the Field of Empty Chairs, Gates of Time, and Survivor Tree.
Oklahoma City Thunder
Oklahoma City Thunder, NBA team relocated from the Seattle SuperSonics in 2008; plays at Paycom Center. Won 2025 NBA championship with 68-14 record, record 12.9-point differential, and MVP Shai Gilgeous-Alexander.
Oklahoma City UFL team
Oklahoma City UFL team: planned United Football League spring football franchise announced April 9, 2026, starting play in the 2028 season at the 10,000-seat MAPS 4 Multipurpose Stadium in downtown Oklahoma City; name and branding not yet announced.
Oklahoma City University
Oklahoma City University, formerly Oklahoma City College, is a private university in Oklahoma City, Oklahoma, founded in 1904, offering degrees in liberal arts, business, and health care.
Oklahoma city university herbarium
The Oklahoma City University Herbarium (OCU) is a plant specimen collection at Oklahoma City University, curated by botanist Adam Ryburn, with about 1,700 digitized records shared through the TORCH consortium and iDigBio.
Oklahoma County
Oklahoma County, Oklahoma: central Oklahoma county formed as County Two in 1890 from the Unassigned Lands; county seat Oklahoma City, the state capital. Most populous of 77 counties, 796,567 residents in 2020.
Oklahoma Democratic Party
Oklahoma Democratic Party, the Oklahoma affiliate of the Democratic Party based in Oklahoma City; dominant from 1907, now a minority party with 28% of voter registration, chaired by John Waldron since 2025.
Oklahoma Department of Transportation
The Oklahoma Department of Transportation (ODOT) is the state agency responsible for planning, building, and maintaining Oklahoma's state highways, founded in 1911 as the Oklahoma Department of Highways.
Oklahoma Girl Scout murders
The Oklahoma Girl Scout murders: the June 13, 1977 killings of three Girl Scouts (Lori Farmer, Michelle Guse, Doris Milner) at Camp Scott near Locust Grove; Gene Leroy Hart was tried and acquitted, and the case remains open.
Oklahoma Mesonet
The Oklahoma Mesonet is a network of 120 automated weather stations across Oklahoma, with at least one in each of its 77 counties, commissioned in 1994.
Oklahoma Panhandle State University
Oklahoma Panhandle State University (OPSU) in Goodwell, Oklahoma, founded 1909 as Pan-Handle Agricultural Institute, a public four-year institution in the OSU/A&M system, with about 1,085 students, five academic schools, and a nationally titled collegiate rodeo program.
Oklahoma Sooners
Oklahoma Sooners: University of Oklahoma athletic teams, famed for football with 7 national titles (Wilkinson, Switzer, Stoops eras), a record 47-game win streak, 7 Heisman winners, and SEC membership since July 1, 2025.
Oklahoma Sooners football
Oklahoma Sooners football, University of Oklahoma team in Norman, playing since 1895. Seven AP national championships, record 47-game win streak (1953-57), four 100-win coaches, moved to the SEC in 2024.
Oklahoma Sooners men's basketball
Oklahoma Sooners men's basketball, University of Oklahoma team in Norman, Oklahoma; SEC member since 2024-25, coached by Porter Moser; 33 NCAA appearances, five Final Fours (1939, 1947, 1988, 2002, 2016), no national title.
Oklahoma State Cowboys football
Oklahoma State Cowboys football: Big 12 FBS program in Stillwater, Oklahoma, also called OSU Cowboys, playing at Boone Pickens Stadium since 1919. All-time 612-556-41, 1945 AFCA national title claim, 2011 Big 12 champions under Mike Gundy, rebuilt in 2026 under Eric Morris with 91 newcomers.
Oklahoma!
Oklahoma! is a 1943 Broadway musical with music by Richard Rodgers and lyrics by Oscar Hammerstein II, adapted from Lynn Riggs's play Green Grow the Lilacs; its title song became Oklahoma's state song in 1953.