All articles starting with R
22,461 articles
Reggio Emilia
Reggio Emilia (Reggio nell'Emilia), Emilia-Romagna city on the Via Emilia between Parma and Modena; birthplace of the 1797 Italian tricolour, home of the Reggio Emilia Approach, and historic center of Parmigiano Reggiano production.
Reggio Emilia approach
Reggio Emilia approach: early childhood education philosophy from Reggio Emilia, Italy, founded by parents with Loris Malaguzzi after World War II; known for the hundred languages, ateliers, documentation, and project-based learning, spread via Reggio Children to over 145 countries.
Regi (Pokémon)
Regi (Pokémon), or legendary giants (巨人伝説), are Regirock, Regice, Registeel, Regieleki, and Regidrago, five Legendary Pokémon created by Regigigas, introduced from Ruby and Sapphire (2002) through The Crown Tundra (2020), each with 580 base stats and braille-themed capture puzzles.
Regia (Italy)
Regia (Italy): ancient sacred building at the east end of the Roman Forum, traditionally King Numa's house, later the pontifex maximus's headquarters with shrines of Mars and Ops Consiva; rebuilt 148 and 36 BC.
Regia Marina
Regia Marina, the Royal Navy of the Kingdom of Italy, formed 17 November 1860 and renamed Marina Militare in 1946; fought chiefly in the Mediterranean convoy war of 1940-1943 without radar, carriers, or fuel.
Regianum
Regianum (Regiano): ancient Roman road station and fortified settlement in Dacia Ripensis near modern Kozloduy, Bulgaria, on the Danube road; mentioned by Ptolemy, Procopius, and the Peutinger map.
Região do Cariri
Região do Cariri, a 29-municipality planning region in southern Ceará, Brazil (Lei Complementar 154/2015), centered on Juazeiro do Norte, Crato, and Barbalha; distinct from the nine-municipality Região Metropolitana do Cariri and from the Kariri people.
Regicide
Regicide (Latin rex, regis, plus -cide) is the killing of a king or queen, or a person guilty of it. Famous cases include Charles I (1649), Louis XVI (1793), and tsar assassination campaigns; European regicide rates declined from AD 600 to 1800.
Regicide of Osman II
The regicide of Osman II (II. Osman'ın Katli) was the 1622 killing of the reigning Ottoman sultan by a Janissary and sipahi rebellion, the first regicide in Ottoman history.
Regierungsbezirk
Regierungsbezirk: a middle-tier (Mittelinstanz) administrative region of a German Land between state ministries and Kreise; 19 exist in Bavaria, NRW, Baden-Württemberg, and Hesse, headed by Regierung, Regierungspräsidium, or Bezirksregierung.
Regierungsbezirk Arnsberg
Regierungsbezirk Arnsberg: Prussian-founded 1815 administrative district of Westphalia, seat Arnsberg, now North Rhine-Westphalia's most populous district, covering Sauerland, Siegerland, and eastern Ruhr with Dortmund and Bochum.
Regierungsbezirk Darmstadt
Regierungsbezirk Darmstadt, one of three Hessian administrative districts, covers southern Hesse including Frankfurt, Wiesbaden, and the Rhine-Main region. Formed 1945 from the provinces Starkenburg and Oberhessen; about 4 million residents in 184 municipalities.
Regierungsbezirk Detmold
Regierungsbezirk Detmold, one of five governmental districts of North Rhine-Westphalia, seat Detmold; covers Ostwestfalen-Lippe (OWL), 6,525 km², about 2.06 million people, formed 1947 from Minden district plus Land Lippe.
Regierungsbezirk Gießen
Regierungsbezirk Gießen is one of the three administrative districts of the German state of Hesse, created on 1 January 1981 to cover the Central Hesse region and comprising five Landkreise.
Regierungsbezirk Kassel
Regierungsbezirk Kassel, northern administrative district of Hessen, Germany, seat Kassel; founded by Prussia 1867 from Kurhessen; today 6 Landkreise plus Kassel and Fulda, about 1.2 million people.
Regierungsbezirk Mittelfranken
Regierungsbezirk Mittelfranken (Middle Franconia), one of seven Bavarian administrative districts, seat Ansbach; formed from the Rezatkreis, renamed 1837 under Ludwig I; 7 Landkreise, 5 kreisfreie Städte.
Regierungsbezirk Münster
Regierungsbezirk Münster is one of five administrative districts of North Rhine-Westphalia, Germany, seated in Münster. Established 1816 under Prussia; 6,918.3 km², 2,683,974 residents (2024), covering the Münsterland and Emscher-Lippe.
Regierungsbezirk Stuttgart
Regierungsbezirk Stuttgart, Stuttgart District, largest of Baden-Württemberg's four administrative districts: 4,167,750 people on 10,556.86 km², two Stadtkreise, eleven Landkreise, three regions, run by the Regierungspräsidium Stuttgart under Susanne Bay.
Regierungsbezirk Unterfranken
Regierungsbezirk Unterfranken (Lower Franconia) is one of seven Bavarian administrative districts: 8,531 km², about 1.33 million people, seat Würzburg, EU geographic midpoint at Gadheim, distinct from the Bezirk Unterfranken.
Regietheater
Regietheater (director's theater) is German-language theatre and opera staging shaped by the director's independent interpretation, opposed to Werktreue; contested since Jessner's 1919 Wilhelm Tell and the 1968 generation.
Regilaul
Regilaul, often called runosong in English scholarship, is the older Estonian folk song whose eight-syllable, alliterative regivärss verses are part of a Baltic-Finnic tradition perhaps 2,000 years old.
Regime
Regime (political regime): the formal and informal rules determining who holds state power and how; distinct from government and state. Classified as democratic, authoritarian, totalitarian, or hybrid by V-Dem, EIU, and Freedom House indices.
Regime Change (book)
Regime Change: Inside the Imperial Presidency of Donald Trump is a 2026 book by New York Times journalists Maggie Haberman and Jonathan Swan, published by Simon & Schuster.
Regime change efforts in the 2026 Iran war
Regime change efforts in the 2026 Iran war are US and Israeli measures since 28 February 2026 to topple Iran's government, which has instead consolidated power.
Regiment
Regiment: a permanent military administrative unit, also called régiment in French. Roots in 17th-century colonel-raised formations and England's 1661 standing army; sizes from a few hundred to 5,000 soldiers, US WWII infantry regiment 3,200 men.
Regiment of Tomé de Sousa
The Regiment of Tomé de Sousa (Regimento de Tomé de Sousa) is a 1548 set of royal instructions defining the duties of Brazil's first governor-general.
Regimental Aid Post
Regimental Aid Post (RAP): the first medical facility in a battlefield evacuation chain, run by a battalion's Regimental Medical Officer just behind the front line for assessment, first aid, and triage before rearward evacuation.
Regimental association
A regimental association is a regiment-specific body of former and often serving British soldiers that relieves members in need and maintains the regiment's history, traditions, and esprit de corps.
Regimental museum
A regimental museum is a museum governed by or on behalf of a British Army regiment or corps to preserve and present that unit's history; about 150 exist in the UK.
Regimental Reconnaissance Company
Regimental Reconnaissance Company (RRC), also Ranger Reconnaissance Company: special reconnaissance unit of the US 75th Ranger Regiment's Special Troops Battalion, conducting clandestine infiltration, surveillance, and strike direction for the Rangers and JSOC.