5,963 articles
Anuradhapura massacre
Anuradhapura massacre: 14 May 1985 LTTE attack on the Sri Maha Bodhi and bus stand in Anuradhapura, Sri Lanka, killing 146 (some sources 120) Sinhalese pilgrims and civilians, in reprisal for the Valvettiturai army massacre, triggering Tamil reprisal killings and a June 1985 cease-fire.
ANZAC Cove
ANZAC Cove (Anzak Koyu), a 600-metre cove on the Arıburnu coast of Turkey's Gallipoli Peninsula, where the ANZAC corps landed on 25 April 1915; site of the eight-month Anzac base, Birdwood's 1915 naming, and annual Anzac Day dawn services.
Anzac Day
Anzac Day, 25 April, is the shared national day of commemoration of Australia and New Zealand, marking the 1915 Gallipoli landing by the ANZAC corps; first observed 1916, a public holiday since 1927, marked by dawn services and veterans' marches.
Apalachee massacre
The Apalachee massacre was a series of 1704 raids by English colonists from Carolina and their Indian allies against the Apalachee and Spanish missions in Florida.
Appomattox Court House National Historical Park
Appomattox Court House National Historical Park, a National Park Service unit in Appomattox County, Virginia, preserves the village and McLean House where Lee surrendered the Army of Northern Virginia to Grant on April 9, 1865.
APRA coup attempt
The APRA coup attempt, also called the January 23 coup, was a failed January 1950 operation in Bandung led by Raymond Westerling's Angkatan Perang Ratu Adil, killing 94 soldiers.
April 2024 Iranian strikes on Israel
Operation True Promise: Iran's April 13-14, 2024 direct drone and missile attack on Israel, its first from Iranian soil, launched in retaliation for the April 1 Damascus consulate strike; over 99% intercepted.
April 2025 massacres of Syrian Druze
April 2025 massacres of Syrian Druze: sectarian attacks on Druze communities in Jaramana, Sahnaya, Ashrafieh Sahnaya and Suwayda, 28 April–early May 2025, triggered by a fake audio recording insulting the Prophet Muhammad, killing over 100 and prompting Israeli strikes.
April 9 tragedy
The April 9 tragedy, known in Georgian memory as "Bloody Sunday," was the killing of about 20 demonstrators by Soviet troops in Tbilisi, Georgia, on April 9, 1989.
Aquino Rebellion
The Aquino Rebellion was an 1833 indigenous uprising in the State of El Salvador, led by Anastasio Aquino against a restored tribute tax and forced labor.
Arab conquest of Egypt
The Arab conquest of Egypt was the military takeover of Byzantine Egypt by Rashidun forces led by 'Amr ibn al-'As between 639 and 642, ending Roman rule.
Arab conquest of the Caucasus
The Arab conquest of the Caucasus was the 7th- and 8th-century expansion of the Caliphate into Transcaucasia, first reaching Armenia in 640 and contested with the Khazars in the north.
Arab Revolt (الثورة العربية)
The Arab Revolt (الثورة العربية), 1916-1918, was Sharif Hussein of Mecca's British-backed uprising against Ottoman rule, centered on the Hejaz railway and the capture of Aqaba and Damascus.
Arab Spring (الربيع العربي)
The Arab Spring, also known as the Arab uprisings, was a wave of protests that began in Tunisia in December 2010, toppling rulers in Tunisia, Egypt, and Libya.
Arab Winter
Arab Winter: term for the authoritarian resurgence, civil wars, and Islamist extremism that followed the 2010-11 Arab Spring uprisings; counterrevolution in Egypt and Bahrain, civil war in Libya, Syria, and Yemen, transition mainly in Tunisia.
Arab-Swahili conquest of Manyema
The Arab-Swahili conquest of Manyema was the nineteenth-century takeover of the Manyema region, now in the eastern Democratic Republic of the Congo, by traders from Zanzibar.
Arab–Byzantine wars
The Arab–Byzantine wars, also known as the Roman–Arab wars, were fought between the Byzantine Empire and Arab caliphates from the 630s to the tenth century.
Arab–Israeli conflict
Arab–Israeli conflict: the dispute between Israel and Arab states, rooted in the Jewish-Arab contest over Palestine, marked by the 1948, 1956, 1967, and 1973 wars, the Egypt and Jordan peace treaties, the Oslo process, and the 2023–2025 Gaza war.
Araguaia guerrilla
The Araguaia guerrilla (Guerrilha do Araguaia, 1972–1974) was an armed conflict in Brazil's Amazon in which Communist Party of Brazil fighters confronted the military dictatorship.
Aramoana massacre
Aramoana massacre: 13 November 1990 mass shooting at Aramoana, Otago, New Zealand, in which David Gray killed 13 people including Sergeant Stewart Guthrie; led to the Arms Amendment Act 1992.
Aranthalawa massacre
Aranthalawa massacre: 2 June 1987 LTTE killing of Buddhist monks, mostly child novices, and civilians on a pilgrimage bus near Nuwaragalatenna, Ampara District, Sri Lanka; 34 of 47 aboard killed; investigation opened only in 2020.
Arbegnoch
The Arbegnoch, meaning "Patriots" in Amharic, were Ethiopian resistance fighters who waged a five-year guerrilla war against Fascist Italy's occupation of Ethiopia from 1936 until liberation in 1941.
Arbeit macht frei
Arbeit macht frei ("work will set you free"), German slogan from a Lorenz Diefenbach novel placed over Nazi concentration camp gates including Auschwitz I, Dachau, and Sachsenhausen; made at Auschwitz by prisoners under Jan Liwacz, with an inverted B, and twice stolen and recovered.
Arbinda attack
The Arbinda attack was a December 2019 simultaneous assault by an armed Islamist group on a gendarme base and an internal displacement camp in Arbinda, Burkina Faso.
Archer Alexander
Archer Alexander (died December 8, 1880) was a Missouri enslaved man who warned Union troops of a Confederate sabotage plot, was emancipated in 1863, and served as the model for the freedman in Washington's 1876 Emancipation Memorial.
Architects & Engineers for 9/11 Truth
Architects & Engineers for 9/11 Truth (AE911Truth) is a Berkeley, California 501(c)(3) nonprofit founded in 2006 by architect Richard Gage, claiming the World Trade Center towers and Building 7 were destroyed by controlled demolition and petitioning for a new investigation with subpoena power, contrary to NIST findings.
Ardeatine massacre
The Ardeatine massacre (Fosse Ardeatine): Nazi German forces shot 335 Italian prisoners in Rome's Ardeatine Caves on 24 March 1944, a 10-for-1 reprisal ordered after the GAP partisans' Via Rasella bombing.
Argentine Confederation
Argentine Confederation (Confederación Argentina): the union of Argentine provinces under the 1831 Pacto Federal, led by Rosas, then reorganized under the 1853 Constitution with capital at Paraná, ending after Pavón in 1861.
Aribert Heim
Aribert Heim (1914–1992), "Dr Death" or "Butcher of Mauthausen", was an Austrian Waffen-SS camp doctor who killed concentration camp prisoners by heart injections and unnecessary operations, then hid in Cairo as Tarek Hussein Farid until his 1992 death, confirmed by a German court in 2012.
Arikara War
The Arikara War of 1823 was a conflict between the United States and the Arikara nation on the Missouri River, the first major U.S. expedition against the Plains Indians.