All articles starting with H

Heracleum mantegazzianum

Heracleum mantegazzianum, giant hogweed, is a 5 m tall monocarpic Apiaceae herb native to the Western Greater Caucasus, invasive in Europe and North America, whose furanocoumarin sap causes phototoxic dermatitis.

Heracleum sphondylium

Heracleum sphondylium, common hogweed or cow parsnip, is a native European Apiaceae herb, 0.3-1.5 m tall with blunt leaves and small umbels, only weakly phototoxic, unlike giant hogweed.

Oct 20, 2026

Heraclia Caccabaria

Heraclia Caccabaria, an ancient port in Narbonensian Gaul identified with Cavalaire-sur-Mer, France, named in the Antonine Maritime Itinerary; etymologies debated, possibly Heraclia Cavalaria from Heracles and pre-Latin kab-.

Heraclid dynasty (Lydia)

The Heraclid dynasty of Lydia, also called the Tylonid dynasty, is the legendary royal line Herodotus says ruled Sardis for 22 generations, about 505 years, before Gyges founded the Mermnads.

Heraclitus (lunar crater)

Heraclitus is an 85.74 km elongated lunar impact crater at 49.31°S, 6.42°E in the southern highlands, formed by the merger of two or three craters, with satellite crater Heraclitus A (4.97 km).

Heraclitus (Ἡράκλειτος)

Heraclitus (Ἡράκλειτος), the 'Obscure' philosopher of Ephesus active around 500 BCE, taught flux, the unity of opposites, and fire, all governed by the Logos; over 100 fragments survive, and his relation to Parmenides remains disputed.

Heraclius

Heraclius (Herakleios, c. 575–641), Byzantine emperor 610–641, overthrew Phokas, defeated Sasanian Persia in the war of 602–628, restored the True Cross to Jerusalem c. 630, adopted the title basileus, but lost Syria and Egypt to the Arabs after Yarmuk (636).

Heraclius of Jerusalem

Heraclius (Eraclius), Latin patriarch of Jerusalem 1180–1190/91, distinct from the Byzantine emperor Heraclius; elected over William of Tyre, crowned Sibylla and Guy, negotiated Jerusalem's 1187 surrender, died at the Siege of Acre.

Sep 23, 2026

Heraclius' Persian campaigns

Heraclius' Persian campaigns (حمله هراکلیوس به ایران) were the Byzantine counteroffensives against Sasanian Iran from 622 to 628, culminating in the Battle of Nineveh and Khosrow II's fall.

Heracross (ヘラクロス)

Heracross (ヘラクロス, Heracros), #214, a Bug/Fighting rhinoceros-beetle Pokémon from Generation II with 125 base Attack, Guts/Swarm/Moxie, and a Skill Link Mega form; not the TCG card or speedrun NPC Bois.

Heraeus

Heraeus is a family-owned German precious metals and technology group headquartered in Hanau, founded from a pharmacy in 1660, with 15,181 employees in roughly 40 countries.

Heraeus family

The Heraeus family is the owner family of Heraeus, a Hanau technology group founded from a 1660 pharmacy and turned industrial by Wilhelm Carl Heraeus in 1851.

Oct 20, 2026

Heraion (Greece)

Heraion of Samos (Greece): major Greek sanctuary of Hera in the Khora plain, 6 km from Pythagoreion; home of the Hekatompedos, the Rhoikos Ionic temple, and the 155-column Great Temple; UNESCO site.

Herakleia (North Macedonia)

Herakleia Lynkestis (Heraclea Lyncestis), ancient Macedonian city founded mid-4th century BC by Philip II, 2 km south of Bitola, North Macedonia; Roman Via Egnatia colony and Early Christian bishopric with famous mosaics, abandoned late 6th century AD.

Herakleopolis

Herakleopolis, also known as Henen-nesut or Heracleopolis Magna, was an ancient Egyptian city at Ihnasya el-Medina in Middle Egypt, capital of the 9th and 10th Dynasties.

Herakleopolitan dynasty (Dynasties 9 and 10)

The Herakleopolitan dynasty, the Ninth and Tenth Dynasties of ancient Egypt, ruled Lower Egypt from Herakleopolis during the First Intermediate Period until Mentuhotep II of Thebes overthrew it.

Herakleopolitan stelae

The Herakleopolitan stelae are funerary stelae and false doors commemorating officials of late Old Kingdom and Herakleopolitan Period Egypt, found chiefly in the Memphite necropolis and named for the dynasty at Heracleopolis.

Herakleopolitan–Theban war

The Herakleopolitan–Theban war, also called the War between Herakleopolis and Thebes, was a roughly century-long civil conflict of Egypt's First Intermediate Period, ending in Theban victory under Mentuhotep II.

Herakles, T.

Herakles, T. is the Barrington Atlas gazetteer designation for a temple of Herakles (Herakleion), covering rare built cult places of the hero-god at Kleonai, Akragas, Kos, Thebes, Gadir, and Rome.

Heraklion (Ηράκλειον)

Heraklion (Ηράκλειον), capital of Crete, largest urban centre with ~200,000 people; 179,302 municipality residents (2021). Former Chandax/Candia; Venetian landmarks, 10M-passenger airport, new Kasteli airport opening 2028.

Herald

Herald: an officer of arms, originally a twelfth-century tournament official who proclaimed combats and knew coats of arms, later messenger, ambassador, and granter of arms; ranks of kings of arms, heralds, pursuivants; College of Arms founded 1484.

Oct 10, 2026

Herald Man'shin

Herald Grigoryevich Man'shin was a Belarusian scientist in technical cybernetics who studied the reliability of human–machine systems, founded ergatic support of automated control systems, and won the USSR State Prize in 1985.

Herald Square

Herald Square, Manhattan: bow-tie plaza at Broadway, Sixth Avenue, and West 34th–35th Streets, named for the New York Herald; home of the Bennett Monument clock, Macy's flagship, and the Macy's parade terminus.

Herald Sun

The Herald Sun is a Melbourne daily tabloid owned by News Corp Australia, formed in October 1990 by merging The Herald (founded 1840) and the Sun News-Pictorial (founded 1922); a right-leaning, mass-market paper with multiple Press Council findings against it.