All articles starting with R
22,461 articles
Riodinidae
Riodinidae (metalmarks) is a butterfly family, sister to Lycaenidae, with c. 1,300-1,500 species, over 90% Neotropical; metallic wing spots, reduced male forelegs, twice-evolved ant symbiosis, origin in proto-Amazonia about 96 Mya.
Riograndense Republic
The Riograndense Republic (Portuguese: República Rio-Grandense), also called the Piratini Republic, was a breakaway state in Brazil's Rio Grande do Sul lasting from 1836 to 1845.
Riohacha
Riohacha (Wayuunaiki: Süchiimma), capital of Colombia's La Guajira department and northernmost South American capital, founded 1545 as a pearl-trade settlement; 177,573 municipal inhabitants, semi-arid Caribbean port city.
Riom
Riom (ancient Ricomagum) is a town in Puy-de-Dôme, France, on a 355 m plateau; administrative and judicial capital of Auvergne 1212-1557, home of the Cour d'appel since 1804.
Rion Ichihara (市原 吏音)
Rion Ichihara (市原 吏音, born 2005) is a Japanese center back from the Omiya Ardija academy who captained Japan's U-20s to the 2025 FIFA U-20 World Cup, won Best Elevens in J3 (2024) and J2 (2025), and joined AZ Alkmaar in 2026.
Rionegro Constitution
The Rionegro Constitution (Constitución de Rionegro de 1863), issued on 8 May 1863, united nine sovereign states into the United States of Colombia and was replaced in 1886.
Rioplatense Spanish
Rioplatense Spanish (español rioplatense, castellano rioplatense), the Spanish variety of the Río de la Plata basin in Argentina and Uruguay, marked by yeísmo rehilado (sheísmo/zheísmo), voseo, Italian-influenced intonation, and about 51 million speakers.
Riordan McClain
Riordan T. McClain is an American Republican politician representing Ohio's 87th House district, covering Crawford, Morrow, Wyandot, and part of Marion County, appointed after a private-sector finance career.
Riot
A riot is a violent public disturbance in which three or more people act together for a common purpose through violence or terror, disturbing the peace; the term itself is politically disputed.
Riot Act
The Riot Act (1714) was a British statute letting officials read a proclamation ordering crowds of over twelve to disperse within an hour, on pain of death; repealed 1973, succeeded by the Public Order Act 1986 riot offence.
Riot Act (album)
Riot Act is Pearl Jam's seventh studio album, released November 12, 2002 on Epic Records. Recorded at Studio X, Seattle, produced by Adam Kasper and Pearl Jam, it mourns the nine Roskilde deaths and criticizes the Bush administration on Bu$hleaguer.
Riot City
Riot City is a Canadian heavy and speed metal band from Calgary, Alberta, formed in 2011, known for the albums Burn the Night and Electric Elite.
Riot control
Riot control: law enforcement tactics, formations, and less-lethal equipment (tear gas, rubber bullets, batons, water cannon) used to disperse riots, governed by UN 2020 guidance and national doctrines, and often documented as misused.
Riot control agent
A riot control agent is a chemical, such as tear gas or pepper spray, that causes short-lived sensory irritation and is used by police for crowd control.
Riot Forge
Riot Forge was Riot Games' third-party publishing label, announced December 2019, that released six single-player League of Legends universe games (Ruined King through Bandle Tale) with indie studios before being sunset in January 2024 amid 530 layoffs.
Riot Games
Riot Games, founded 2006 in Los Angeles by Brandon Beck and Marc Merrill, is the Tencent-owned developer of League of Legends, VALORANT, TFT, Wild Rift, Runeterra, 2XKO, and Riftbound, with major esports and the Arcane series.
Riot Games Arena
Riot Games Arena: Riot Games' esports venues, chiefly the Berlin studio (former LEC Studio, Adlershof, opened January 2024, 210 seats) hosting LEC and VCT EMEA, plus arenas in Los Angeles and São Paulo.
Riot grrrl
Riot grrrl, an underground feminist punk movement and music style from the early 1990s Pacific Northwest and Washington, D.C., tied to third-wave feminism, Bikini Kill, Bratmobile, zines, and the Riot Grrrl Manifesto.
Riot of 1624
The Riot of 1624, also called the Tumult of 1624, was an uprising in Mexico City that drove the viceroy, the Marqués de Gelves, from power.
Riot Ventures
Riot Ventures is a Venice, California venture capital firm founded in 2017 by Stephen Marcus and Will Coffield that invests in industrial and deep-tech startups.
Riot Women
Riot Women is a 2025 BBC One and BritBox six-part drama by Sally Wainwright about five menopausal women in Hebden Bridge, West Yorkshire, who form a punk band for a talent contest, starring Joanna Scanlan, Rosalie Craig, Tamsin Greig, Lorraine Ashbourne, and Amelia Bullmore, with music by ARXX; renewed for a second series in November 2025.
Riot!
Riot! is Paramore's second studio album, released June 12, 2007 on Fueled by Ramen. Produced by David Bendeth, its singles Misery Business, Crushcrushcrush, and That's What You Get made the teenage Tennessee band stars, selling 700,000 copies in a year.
Riovaz
Riovaz is an American singer-songwriter and producer from Jersey City, New Jersey, who broke through in 2020 as a high-schooler with the viral single "Prom Night."
Rip Curl (osm node/12688530937)
Rip Curl (osm node/12688530937): OpenStreetMap node for a Rip Curl location; Rip Curl is the Australian surf brand founded 1969 in Torquay by Warbrick and Singer, known for wetsuits, the Bells Beach Rip Curl Pro, B Corp certification, and KMD Brands ownership since 2019.
Rip current
A rip current is a strong, narrow flow of water moving away from shore through the surf zone, and the leading cause of death at surf beaches.
Rip Hunter
Rip Hunter, DC Comics time-traveling hero created by Jack Miller and Ruben Moreira, debuting in Showcase #20 (1959); Time Masters and Linear Men member, Time Sphere inventor, secret son of Booster Gold, and Legends of Tomorrow character.
Rip Taylor
Rip Taylor (Charles Elmer Taylor Jr., 1931–2019), American confetti-throwing comedian, host of The $1.98 Beauty Show, Emmy-nominated voice of Uncle Fester, over 2,000 TV appearances.
Rip tide
A rip tide, also called a tidal rip, is a strong current formed by tidal water moving swiftly through an inlet or estuary mouth, distinct from a rip current.
Rip Torn
Rip Torn, born Elmore Rual Torn Jr. (1931–2019), was an American actor who won an Emmy as Artie on The Larry Sanders Show and played Agent Zed in Men in Black.
Rip Van Winkle
Rip Van Winkle: Washington Irving's 1819 short story from The Sketch Book, retelling a German Peter Klaus tale of a man who sleeps twenty years in the Catskills and wakes after the Revolution.