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Hillchol

Hillchol (BBV131) is a single-strain oral cholera vaccine using an inactivated Hikojima V. cholerae strain, developed by Hilleman Laboratories, launched by Bharat Biotech in India in 2024, non-inferior to Shanchol in Phase III.

Hille–Yosida theorem

The Hille–Yosida theorem, proved independently by Einar Hille and Kôsaku Yosida in the late 1940s, characterizes which linear operators generate strongly continuous one-parameter semigroups on a Banach space.

Hillel Adesnik

Hillel Adesnik is a neuroscientist and Associate Professor of Neurobiology at UC Berkeley who studies cortical microcircuits and received the 2013 Presidential Early Career Award.

Hillel Furstenberg

Hillel (Harry) Furstenberg, born 1935, is a mathematician who spent his career at the Hebrew University of Jerusalem, known for ergodic theory and for sharing the 2020 Abel Prize.

Hillel II

Hillel II (Hillel ha-Nasi) was Nasi, or Patriarch, of the Sanhedrin from about 330 to 365, traditionally credited with instituting the calculated Jewish calendar in 359.

Hillel International

Hillel International, formally Hillel: The Foundation for Jewish Campus Life, is the world's largest Jewish campus organization. Founded in 1923 by Rabbi Benjamin Frankel at the University of Illinois, it serves nearly 200,000 students at 850+ campuses in 17 countries and sets Israel-related Standards of Partnership for its chapters.

Hillel Kobrinsky

Hillel Kobrinsky is an Israeli technology entrepreneur who founded web-conferencing company Interwise, sold to AT&T in 2007, and co-founded DriveNets, a networking software company, in 2015.

Hillel Slovak (הלל סלובק)

Hillel Slovak (הלל סלובק), 1962–1988, Israeli-American founding guitarist of the Red Hot Chili Peppers, born in Haifa; shaped the band's funk-rock sound on Freaky Styley and The Uplift Mofo Party Plan before dying of a heroin overdose at 26.

Hillel the Elder (הִלֵּל)

Hillel the Elder, also known as Hillel I, was a Jewish sage of the late Second Temple period who headed the House of Hillel and founded a dynasty of patriarchs.

Hiller Aircraft

Hiller Aircraft, also known as Hiller Helicopters, was an American helicopter manufacturer founded by Stanley Hiller Jr. in 1942, best known for the UH-12/OH-23 Raven.

Hiller OH-23 Raven

The Hiller OH-23 Raven, also called the H-23 or UH-12, is an American light observation helicopter, over 2,000 built, that served the US Army in Korea and Vietnam.

Hillerød

Hillerød, North Zealand town in Denmark, formerly named Frederiksborg (1772-1908); home of Frederiksborg Castle, Museum of National History, S-train line A terminus, municipality of about 55,400.

Hillhouse Investment (Zhang Lei)

Hillhouse Investment, historically known as Hillhouse Capital, is a Singapore-based alternative investment firm founded by Zhang Lei in 2005, known for early bets on Tencent and JD.com and deals like Belle International.

Hilliard d'Auberteuil

Michel René Hilliard d'Auberteuil (1751–1789) was a French lawyer and writer active in Saint-Domingue whose 1776 treatise proposing radical colonial reforms was suppressed by the Conseil d'État in 1777.

Hilliard Ensemble

The Hilliard Ensemble: English a cappella vocal quartet (active 1973/1974 to December 2014), founded by Paul Hillier, named after miniaturist Nicholas Hilliard; famed for early and new music, Arvo Pärt recordings, and the million-selling Officium albums with Jan Garbarek on ECM.

Hilliard Lyle

Hilliard Lyle (1879-1931), Canadian lacrosse player with the Winnipeg Shamrocks; won gold at the 1904 St. Louis Olympics, served as a colonel in France in World War I, later ran a store in Beaverlodge, Alberta.

Hilliard W. Paige

Hilliard W. Paige, also known as Hilliard Wegner Paige, was an American engineer and executive elected to the National Academy of Engineering in 1968 who led General Electric's missile and space division.

Hills Like White Elephants

Hills Like White Elephants is Ernest Hemingway's 1927 short story, first published in transition and collected in Men Without Women, told almost entirely in dialogue between an American and the girl Jig at a Spanish railway station, circling an unnamed abortion.

Hillsboro, Oregon

Hillsboro, Oregon: county seat of Washington County west of Portland, Oregon's fifth largest city (about 110,000), and the center of the Silicon Forest, anchored by Intel's largest campus and a growing data center cluster.

Hillsborough Castle

Hillsborough Castle, an 18th-century Georgian "Irish Big House" in County Down built by the Hill family, is the British monarch's official residence in Northern Ireland, home of the Secretary of State, and a Good Friday Agreement venue.

Hillsborough County Courthouse

The Hillsborough County Courthouse is the courthouse of Hillsborough County, Florida, housed since 2004 in the George E. Edgecomb Courthouse in downtown Tampa, the latest in a line of at least six buildings since 1834.

Hillsborough County, Florida

Hillsborough County, Florida: west-central Gulf Coast county created January 25, 1834, named for the Earl of Hillsborough, county seat Tampa, 4th most populous Florida county with about 1.57 million residents in 2025.

Hillsborough County, New Hampshire, United States

Hillsborough County, New Hampshire: most populous of the state's 10 counties (433,415 est. 2025), containing Manchester and Nashua, formed 1769, named for Wills Hill, Earl of Hillsborough.

Hillsborough disaster

Hillsborough disaster: fatal human crush on 15 April 1989 at the FA Cup semi-final Liverpool v Nottingham Forest at Sheffield Wednesday's Hillsborough Stadium, Sheffield; 97 died, 2016 inquests found unlawful killing, led to all-seater stadiums and the Hillsborough Law.

Hillsborough Stadium

Hillsborough Stadium, Sheffield home of Sheffield Wednesday since 1899; 1966 World Cup venue; site of the 1989 Hillsborough disaster (97 deaths) that led to the Taylor Report and all-seater stadiums.

Hillsdale College

Hillsdale College, also called Michigan Central College at founding, is a private classical liberal arts college in Hillsdale, Michigan, founded in 1844, noted for its nondiscrimination charter, refusal of federal funding, and conservative K-12 and political outreach.

Hillside Drive

Hillside Drive is an upcoming Irish coming-of-age drama film written and directed by Lenny Abrahamson, set in 1970s Dublin and scheduled for release in 2027.

Hillside Elementary School (Berkeley, California)

Hillside Elementary School, also recorded as Hillside School and Hillside Primary, was a Berkeley Unified public elementary school at 1581 Le Roy Avenue, Berkeley, California: a 1925 Tudor Revival building by Walter H. Ratcliff Jr., closed in the early 1980s amid falling enrollment and a Hayward Fault trace, now a landmark being converted to a residence and art studios.

Hillside Memorial Park Cemetery

Hillside Memorial Park and Mortuary is a Jewish cemetery in Los Angeles at 6001 W. Centinela Ave., established 1941, owned by Temple Israel of Hollywood, with burials including Al Jolson and Leonard Nimoy.

Hillside Strangler

Hillside Strangler, also the Hillside Stranglers: cousins Kenneth Bianchi and Angelo Buono, who raped and murdered ten women and girls in Los Angeles, 1977-1978; Bianchi's failed multiple-personality defense and 2025 parole denial distinguish the case.