All articles starting with Q
2,252 articles
Quintillus
Quintillus (Marcus Aurelius Claudius Quintillus), Roman emperor in 270 AD and brother of Claudius II Gothicus, reigned between 17 days and a few months before Aurelian replaced him; sources report suicide by opening his veins, and his abundant coinage argues against the shortest figures.
Quintín Bandera
Quintín Bandera (José Quintino Bandera Betancourt, also written Quintín Banderas) was an Afro-Cuban general who fought in all three of Cuba's wars of independence, from 1868 to 1898.
Quintinshill rail disaster
The Quintinshill rail disaster was a multi-train collision and fire near Gretna Green, Scotland, on 22 May 1915 that killed over 220 people, most of them Royal Scots soldiers bound for Gallipoli.
Quinto (royal fifth) and the diamond contracts
The quinto (Quinto e Contratos dos Diamantes) was the Portuguese Crown's one-fifth tribute on colonial Brazilian minerals, collected for diamonds through contracts from 1740 to 1771.
Quinto Fiorentino
Quinto Fiorentino, hamlet of Sesto Fiorentino west of Florence at the fifth mile of the Roman road, known for the Etruscan tholos tombs La Mula and La Montagnola and the Palastreto necropolis.
QuintoAndar
QuintoAndar is a Brazilian proptech company founded in 2012 by Gabriel Braga and André Penha that intermediates rentals, guarantees payment to landlords, and operates in six countries.
Quinton Aaron
Quinton Aaron (born 1984, Bronx) is an American actor known for playing Michael Oher in The Blind Side (2009); credits include Be Kind Rewind and Halfway; he survived congestive heart failure and a 2026 spinal stroke.
Quinton Byfield
Quinton Byfield, Canadian NHL center for the Los Angeles Kings, drafted second overall in 2020, highest drafted Black player in NHL history; Sudbury Wolves OHL first overall 2018, World Junior gold 2020, signed through 2028-29 at $6.25 million cap hit.
Quinton de Kock
Quinton de Kock (born 1992, Johannesburg) is a South African left-handed wicketkeeper-batter; Test debut 2014, retired from Tests in 2021 and ODIs after the 2023 World Cup, reversed his ODI retirement in 2025, and won the 2016 ICC ODI Cricketer of the Year award.
Quinton Flynn
Quinton Flynn (born 1964, Cleveland) is an American voice actor known as Raiden in Metal Gear, Axel/Lea in Kingdom Hearts, Iruka in Naruto, Kon in Bleach, and Silver the Hedgehog; several roles were recast after 2020 allegations, later dropped.
Quinton Fortune
Quinton Fortune, South African footballer and coach, Manchester United midfielder 1999–2006 with 126 appearances, 46 South Africa caps, 1998 and 2002 World Cups, now Serbia assistant manager under Veljko Paunovic.
Quinton Jackson
Quinton 'Rampage' Jackson (born 1978, Memphis) is an American MMA fighter, former UFC light heavyweight champion (2007, KO of Chuck Liddell), Pride star, Bellator tournament winner, and actor who played B.A. Baracus in The A-Team (2010).
Quinton Lucas
Quinton Lucas is an American Democratic politician and the 55th Mayor of Kansas City, Missouri, serving since 2019 after a term on the city council beginning in 2015.
Quintonil
Quintonil, a two-Michelin-star restaurant in Polanco, Mexico City, opened in 2012 by chef Jorge Vallejo and Alejandra Flores, serves contemporary Mexican cuisine with indigenous ingredients and insects; ranked No. 3 on the World's 50 Best Restaurants 2025.
Quintozene
Quintozene (pentachloronitrobenzene, PCNB), an organochlorine soil fungicide and seed dressing. Persistent, HCB-contaminated; not approved in the EU since 2000; EPA proposed US cancellation in 2022.
Quintozene containing > 1 g/kg HCB or > 10 g/kg pentachlorobenzene
EU Pesticides Database entry (EU ID 1410) for quintozene (PCNB, CAS 82-68-8) fungicide material exceeding 1 g/kg hexachlorobenzene or 10 g/kg pentachlorobenzene impurity limits; not approved in the EU.
Quintrevion Wisner
Quintrevion (Tre) Wisner, Florida State running back transferred from Texas; 2024 All-SEC with 1,064 rushing yards and a Texas-record 44 receptions; 2027 NFL Draft prospect.
Quintuplet Cluster
The Quintuplet Cluster is a young, massive star cluster about 26,000 light years from Earth near the Milky Way's center, named for five bright infrared sources.
Quintuplets
Quintuplets (also Quints) is a 2004-2005 Fox sitcom created by Mark Reisman, starring Andy Richter and Rebecca Creskoff as parents of teenage quintuplets; one season, 22 episodes, 13% on Rotten Tomatoes.
Quintus Aurelius Symmachus
Quintus Aurelius Symmachus, also known as Quintus Aurelius Symmachus Eusebius, was a late Roman senator, orator, and statesman who served as urban prefect of Rome in 384.
Quintus Fabius Maximus Verrucosus
Quintus Fabius Maximus Verrucosus, called Cunctator the Delayer, Roman dictator of 217 BC who wore down Hannibal by avoiding battle, origin of the Fabian strategy; consul five times, died 203 BC.
Quintus Labienus
Quintus Labienus was a Roman republican officer, son of Titus Labienus, who led a Parthian invasion of the Roman East from 40 to 39 BC before being defeated and executed.
Quintus Tullius Cicero
Quintus Tullius Cicero (c. 102–43 BCE), Cicero's younger brother: praetor 62, governor of Asia, Caesar's legate in Gaul, author of the Commentariolum petitionis; died in the 43 proscriptions.
Quinuclidine
Quinuclidine, or 1-azabicyclo[2.2.2]octane, is a rigid bicyclic tertiary amine whose ring occurs in alkaloids such as quinine, and which serves as a laboratory reagent and catalyst.
Quinuclidine-catalyzed HAT arylation of C(sp3)–H bonds
Quinuclidine-catalyzed HAT arylation of C(sp3)–H bonds is a photoredox method in which a quinuclidine radical cation abstracts hydrogen atoms from strong aliphatic C–H bonds, forming new C–C bonds.
Quinupristin
Quinupristin, a semisynthetic group B streptogramin from pristinamycin I, is the 30:70 partner of dalfopristin in Synercid, an intravenous ribosome-targeting antibiotic once approved for vancomycin-resistant E. faecium, now discontinued in the US.
Quinyon Mitchell
Quinyon Mitchell (born 2001) is an Eagles cornerback from Toledo, drafted 22nd overall in 2024; Super Bowl LIX champion, 2024 AP DROY runner-up, and 2025 first-team All-Pro and Pro Bowl selection.
Quip
Quip is a San Francisco productivity software company founded in 2012 by Bret Taylor and Kevin Gibbs, known for combining documents and chat, acquired by Salesforce in 2016.
Quipu
Quipu (khipu, Quechua for "knot"): Andean knotted-cord record-keeping device of the Inka Empire (ca. 1400-1532). Decimal knots on colored cotton or camelid cords recorded censuses, taxes, and storehouse accounts; narrative and calendar quipus remain partly undeciphered.
Quipu (cosmic structure)
Quipu, named for the Incan knotted cords, is a filamentary superstructure of galaxy clusters identified in 2025 as the largest found in its survey, about 1.3 billion light-years long with a mass of 200 quadrillion Suns.