Society and history

Bay Area Laboratory Co-operative

Bay Area Laboratory Co-operative (BALCO) was a supplement and mineral-testing lab in Burlingame, California, founded by Victor Conte in 1984 and known for the designer steroid THG scandal.

Bay of Pigs Invasion

The Bay of Pigs Invasion, also known as Operation Zapata, was a failed 1961 military operation where CIA-trained Cuban exiles attempted to overthrow Fidel Castro's government in Cuba.

Bayajidda

Bayajidda, also called Bayajida or Abuyazidu, is the legendary founder of the Hausa states, said to have killed a serpent at a well in Daura, Nigeria.

Bayan al-Mughrib

Bayan al-Mughrib (بيان المغرب) is a chronicle of the Islamic West by the Marrakesh historian Ibn Idhari, covering North Africa and al-Andalus to the fall of the Almohads.

Bayan I

Bayan I was the first recorded khagan of the Avars, reigning from 562 or 565 to 602 and building an empire in the Carpathian Basin.

Bayan of the Baarin

Bayan of the Baarin, known in Chinese as Bóyán, was a Mongol general of the Yuan dynasty who conquered the Southern Song for Kublai Khan in 1276.

Sep 19, 2026

Bayan Resources

Bayan Resources is an Indonesian coal mining group headquartered in Jakarta and controlled by its founder, Low Tuck Kwong, with a record 68 million tonnes produced in 2025.

Sep 24, 2026

Bayan wujub al-hijra

Bayan wujub al-hijra is an Arabic treatise by Usman dan Fodio arguing that believers must migrate from unjust rule, appoint an imam, and wage jihad.

Sep 25, 2026

Bayan's dictatorship and fall

Bayan's dictatorship and fall (伯顏專權與被黜) was grand chancellor Bayan's one-man rule over Yuan emperor Toghon Temür from 1335 to 1340, ended by a coup led by his nephew Toqto'a.

Bayanchur Qaghan

Bayanchur Qaghan, known as Moyanchur and titled Tengri Qaghan, was the second ruler of the Uyghur Khaganate from 747 to 759, succeeding his father, the founder.

Bayard Rustin (1912–1987), American Quaker pacifist, socialist, and openly gay civil rights strategist; co-founder of CORE, advisor to Martin Luther King Jr., and chief organizer of the 1963 March on Washington.

Bayazid Ansari

Bayazid Ansari (میاں بایزید انصاری), known to followers as Pir Roshan, was a 16th-century Pashtun Sufi master who founded the Roshaniyya movement and led armed resistance against the Mughal empire.

Bayazid Bastami

Bayazid Bastami (بایزید بسطامی) was an early Persian Sufi mystic of Bastam in northern Iran, famed for his ecstatic sayings and honored as Lord of the mystics.

Baybars al-Jashnakir's usurpation and fall

Baybars al-Jashnakir's usurpation and fall (بيبرس الجاشنكير) was the seizure of the Mamluk sultanate by the amir Baybars al-Jashnakir, who reigned as al-Malik al-Muzaffar from 1309.

Baybars al-Mansuri

Baybars al-Mansuri (بيبرس المنصوري) was a Mamluk amir, dawadar, and historian of Egypt who died in 1325, fought the Crusaders and Mongols, and wrote the chronicle Zubdat al-Fikra.

Baybars I

Baybars I (الظاهر بيبرس) was a Turkic Kipchak slave soldier who became the fourth Bahri Mamluk sultan of Egypt and Syria, reigning from 1260 until his death in 1277.

Baybars' campaign against the Assassins and capture of Krak des Chevaliers

Baybars' capture of Krak des Chevaliers (قلعة الحصن) was the 1271 siege in which the Mamluk sultan Baybars took the castle from the Knights Hospitaller after a month.

Baybaşin family

Baybaşin family: Kurdish-Turkish crime clan from Lice, Turkey, also called the Bombacilar; led by brothers Huseyin (life sentence, Netherlands), Abdullah and Mehmet; once controlled up to 90% of UK heroin.

Baybayin

Baybayin is the pre-Spanish abugida script of the Tagalogs and other Philippine groups, with 17 Doctrina Christiana characters, kudlit vowel marks, a Spanish-introduced virama, and the 1613/1625 UST documents; wrongly called alibata.

Baydu

Baydu (بایدو) was the sixth il-khan of the Mongol Ilkhanate in Iran, seizing the throne from his cousin Gaykhatu in 1295 and reigning about six months.

Oct 10, 2026

Bayerische Versorgungskammer (BVK)

Bayerische Versorgungskammer (BVK) is Germany's largest pension group under public law, managing twelve professional and municipal schemes for Bavaria, with about €122 billion in assets and 2.2 million insured members.

Bayesian econometrics

Bayesian econometrics is the application of Bayesian statistical inference to economic data, combining a prior distribution with a likelihood to form a posterior used for estimation and forecasting.

Oct 10, 2026

Bayesian game

A Bayesian game is a game of incomplete information in which each player holds private information, or type, introduced by John C. Harsanyi in 1967 and widely applied to auctions.

Bayezid I

Bayezid I (Yıldırım, the Thunderbolt), fourth Ottoman sultan (r. 1389–1403), built the first centralized Ottoman state from the Danube to the Euphrates, crushed the crusaders at Nicopolis (1396), and was captured by Timur at Ankara (1402).

Bayezid I's Balkan campaigns

Bayezid I's Balkan campaigns were the Ottoman military operations between 1389 and 1402 by which Sultan Bayezid I conquered Bulgaria, defeated the crusade at Nicopolis in 1396, and blockaded Constantinople.

Bayezid II

Bayezid II (Bâyezîd-i Velî, 1447/1448–1512), eighth Ottoman sultan (r. 1481–1512), son of Mehmed II; consolidated finances, admitted Sephardic Jews of 1492, fought Venice, abdicated to Selim I.

Bayezid Pasha

Bayezid Pasha (بایزید پاشا) was an Ottoman statesman who served as grand vizier to Mehmed I, suppressed the revolt of Shaykh Bedreddin, and was killed in 1421.