All articles starting with H

Haymarket Media Group

Haymarket Media Group is a privately held British media company headquartered in London, founded in 1957 by Michael Heseltine and known for Autocar, What Car?, Campaign, and PRWeek.

Hayn (lunar crater)

Hayn is a lunar impact crater near the Moon's northeast limb, just northeast of Mare Humboldtianum, with terraced walls and a 1.5 km central peak.

Haynau's repression

Haynau's repression was the post-1849 campaign of courts-martial, executions, and imprisonment in defeated Hungary, directed by General Julius von Haynau and including the 13 Martyrs of Arad.

Oct 15, 2026

Haynes power station

Haynes power station, also called Haynes Generating Station, is a natural gas-fired power plant in Long Beach, California, owned by the Los Angeles Department of Water and Power.

Oct 15, 2026

Haynesville Shale

The Haynesville Shale is an Upper Jurassic shale gas play more than 10,000 feet beneath northwestern Louisiana, eastern Texas, and southwestern Arkansas, producing natural gas at scale since 2008.

Haynt

Haynt (היינט, "Today") was a Yiddish-language daily newspaper published in Warsaw from 1908 to 1939, one of the two most important Yiddish dailies in Poland.

Sep 24, 2026

Hayq Estifanos Monastery

Hayq Estifanos Monastery (ሐይቅ እስጢፋኖስ), also called Dabra Hayq Estifanos, is an Ethiopian Orthodox monastery on an island in Lake Hayq, prominent from the thirteenth century under abbot Iyasus Mo'a.

Hayrâbâd

Hayrâbâd (خيرآباد) is a mesnevi, a narrative poem in rhymed couplets, by the Ottoman poet Nâbî, completed in Aleppo in 1705 as the last of his works.

Hayreddin Barbarossa (Khayr al-Din, 1478–1546), Ottoman corsair from Mytilene and Grand Admiral under Süleyman I, made Algiers an Ottoman regency in 1519, took Tunis in 1534, and faced Andrea Doria at Preveza in 1538.

Sep 19, 2026

Hayri Çulhacı

Hayri Çulhacı is a Turkish financial executive who became Chair of Sabancı Holding in March 2025, succeeding Güler Sabancı as the first non-family chair after a career at Akbank.

Hayriyye

Hayriyye, formally titled Hayrî-nâme, is a didactic masnavi by the Ottoman poet Nâbî, written in Aleppo in 1701 as moral and practical advice for his seven-year-old son.

Sep 23, 2026

Hayrullah Efendi

Hayrullah Efendi (خير الله افندى) was an Ottoman physician, historian, and statesman of the Tanzimat era who died in Tehran in 1866 as envoy to Iran.

Hays Code

The Hays Code, or Motion Picture Production Code, was Hollywood's 1930-1968 self-censorship rulebook, enforced from 1934 by Joseph Breen's PCA and replaced in 1968 by MPAA ratings.

Hays County

Hays County is a county in south central Texas with San Marcos as its seat. Formed in 1848, it is among the fastest growing counties in Texas.

Sep 21, 2026

Hays S. Rye

Hays S. Rye, also published as Hays Rye, is an American biochemist and associate professor at Texas A&M University known for work on protein folding and the GroEL/GroES chaperonin.

HAYSTAC

HAYSTAC (Haloscope at Yale Sensitive To Axion CDM) is a tunable microwave cavity experiment at Yale University searching for axion dark matter, and the first to use a squeezed-state receiver.

Oct 15, 2026

Haystack (framework)

Haystack is an open-source Python framework maintained by deepset for building production applications with large language models, including RAG systems, semantic search, multimodal applications, and autonomous agents.

Haystack Catena

Haystack Catena is a 274 km chain of overlapping secondary impact craters on Mercury, in the Kuiper quadrangle at 4.42°N, 46.48°W. Renamed from Haystack Vallis by the IAU in 2013 and named for Haystack Observatory, a Massachusetts radio telescope facility.

Sep 19, 2026

Haystack Oncology

Haystack Oncology is a Baltimore, Maryland-based liquid-biopsy company founded in 2021 by Johns Hopkins cancer researchers, known for the Haystack MRD test and acquired by Quest Diagnostics in 2023.

Haystack Ventures

Haystack Ventures is a San Francisco early-stage venture capital firm founded by Semil Shah in 2013, investing $1M to $3M in initial rounds, with DoorDash, Instacart, and Figma among its investments.

Haystacks Calhoun

Haystacks Calhoun (William Dee Calhoun, 1934-1989), American 601-lb professional wrestler from McKinney, Texas; WWWF World Tag Team Champion with Tony Garea, 2017 WWE Hall of Fame Legacy Inductee; distinct from British namesake Giant Haystacks (Martin Ruane).

Haysyn Raion

Haysyn Raion (Гайсинський район), a district of Vinnytsia Oblast, Ukraine, created 17 July 2020 by Resolution 807-IX; center Haisyn; 5,681.2 km², 263 settlements, 14 hromadas, about 240,000 people.

Hayton of Corycus

Hayton of Corycus, known in Armenian as Hetum Patmich, was an Armenian prince, diplomat, and historian of Cilician Armenia, author of La Flor des Estoires de la Terre d'Orient (1307).

Hayvonot bog'i

Hayvonot bog'i, Uzbek for zoo, is an institution keeping and breeding wild animals for conservation, education, and research; the Tashkent Zoo, founded 1924, is Uzbekistan's largest with 373 species on 21.5 hectares.

Oct 10, 2026

Haywa ibn Shurayh

Haywa ibn Shurayh (حيوة بن شريح), also known as Abu Zur'a, was an Egyptian hadith transmitter, jurist, and ascetic who refused the judgeship of Egypt in 761 and died in 775.

Hayward Fault Zone

The Hayward Fault is a major strike-slip branch of the San Andreas fault system running through Berkeley, Oakland, Hayward, and Fremont, with large earthquakes every 100 to 200 years.

Hayward Field

Hayward Field, University of Oregon's Eugene track and field stadium (1919), 'TrackTown USA' centerpiece; rebuilt 2018–20 for ~$270 million by Phil Knight; hosted 6 Olympic Trials, 15 NCAA championships, and the 2022 World Athletics Championships Oregon22.