April 23 in History

The Temple of Venus Erycina (Latin: Aedes Veneris Erycinae) was a temple on the Capitoline Hill in Ancient Rome dedicated to Venus Erycina. This was an aspect of the goddess Venus. Later this temple was probably called the Temple of the Capitoline Venus (Aedes Veneris Capitolinae). There was another temple with the same name in Rome, the Temple of Venus Erycina (Quirinal Hill).

Year 599 (DXCIX) was a common year starting on Thursday of the Julian calendar. The denomination 599 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Year 711 (DCCXI) was a common year starting on Thursday of the Julian calendar. The denomination 711 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

The Battle of Clontarf (Irish: Cath Chluain Tarbh) took place on 23 April 1014 at Clontarf, near Dublin, on the east coast of Ireland. It pitted an army led by Brian Boru, High King of Ireland, against a Norse-Irish alliance comprising the forces of Sigtrygg Silkbeard, King of Dublin; Máel Mórda mac Murchada, King of Leinster; and a Viking army from abroad led by Sigurd of Orkney and Brodir of Mann. It lasted from sunrise to sunset, and ended in a rout of the Viking and Leinster armies. It is estimated that between 7,000 and 10,000 men were killed in the battle, including most of the leaders. Although Brian's forces were victorious, Brian himself was killed, as were his son Murchad and his grandson Toirdelbach. Leinster king Máel Mórda and Viking leaders Sigurd and Brodir were also slain. After the battle, the power of the Vikings and the Kingdom of Dublin was largely broken. The battle was an important event in Irish history and is recorded in both Irish and Norse chronicles. In Ireland, the battle came to be seen as an event that freed the Irish from foreign domination, and Brian was hailed as a national hero. This view was especially popular during the period of British rule in Ireland. Although the battle has come to be viewed in a more critical light, it still has a hold on the popular imagination.

Edmund Ironside (c. 991 – 30 November 1016; Old English: Ēadmund, Old Norse: Játmundr, Latin: Edmundus; sometimes also known as Edmund II) was King of the English from 23 April to 30 November 1016. Edmund's reign was spent fighting against a Danish invasion led by Cnut. Edmund was born sometime between 990 and 993 to King Æthelred the Unready. Little is known about Edmund's life before 1015; the first concrete evidence of his agency was from the late 1000s and he seems to have been close with his brother Æthelstan. Although Edmund possibly fought alongside his father in the campaigns of 1009 to 1011 and the campaign of 1013, when the royal family was forced to flee to Normandy due to Sweyn Forkbeard's invasion that year, Edmund stayed in England with Æthelstan. Æthelstan died in June 1014 and in his will Edmund was the main beneficiary, receiving the sword of Offa and estates in the Danelaw. Edmund inherited Æthelstan's connections in the Five Boroughs. When his close allies Sigeferth and Morcar were executed with the permission of King Æthelred, he revolted, illegally marrying Sigeferth's widow and occupying the Five Boroughs. Edmund issued two charters, on one of which he called himself king. Edmund's revolt was suddenly ended by the invasion of Sweyn's son Cnut in the summer of 1015. To contest Cnut's occupation in Wessex, he attempted to raise armies alongside his father and Eadric Streona, Ealdorman of Mercia, but they all collapsed due to mistrust. A third force raised with Uhtred of Bamburgh unravelled as Uhtred submitted to Cnut when the latter threatened Bamburgh. Æthelred died on 23 April 1016 and Edmund soon claimed the throne. He fought in four battles with Cnut at Penselwood, Sherston, Brentford, and possibly Otford, and gained military success. By the time he faced Cnut at the Battle of Assandun, he was backed by the "whole English nation" but Eadric Streona fled, causing a decisive English defeat. After a possible sixth battle, Edmund was forced to partition the kingdom at Alney, with Cnut receiving everything except for Wessex, held by Edmund. Edmund died on 30 November after ruling for 222 days, allowing Cnut to consolidate the rest of England. Afterwards, Cnut exiled or executed Edmund's family and supporters. The Danish line founded by Cnut would end in 1042 and the House of Wessex was restored temporarily under Edmund's much younger half-brother, Edward the Confessor. Edgar the Ætheling, Edmund's grandson, was a claimant to the English throne for some time. Edmund's reputation was praised in medieval sources, and he is generally seen as a brave and capable king who fought Cnut to a standstill, forcing compromise.

Saint George's Night Uprising in 1343–1345 (Estonian: Jüriöö ülestõus, Estonian pronunciation: [jyri.øː yles.tɤus]) was an unsuccessful attempt by the indigenous Estonian population in the Duchy of Estonia, the Bishopric of Ösel-Wiek, and the insular territories of the State of the Teutonic Order to rid themselves of German and Danish rulers and landlords who had conquered the country in the 13th century during the Livonian Crusade; and to eradicate the non-indigenous Christian religion. After initial success the revolt was ended by the invasion of the Teutonic Order. In 1346, the Duchy of Estonia was sold for 19,000 Köln marks by the King of Denmark to the Teutonic Order. The shift of sovereignty from Denmark to the State of the Teutonic Order took place on November 1, 1346.

The Most Noble Order of the Garter is an order of chivalry founded by King Edward III in 1348. The most senior order of knighthood in the British honours system, it is outranked in precedence only by the decorations of the Victoria Cross and the George Cross. The Order of the Garter is dedicated to the image and arms of Saint George, England's patron saint. Appointments are at the Sovereign's sole discretion, typically made in recognition of national contribution, service to the Crown, or for distinguished personal service to the Monarch. Membership of the order is limited to the sovereign, the Prince of Wales, and no more than 24 living members, or Companions. The order also includes Supernumerary Knights and Ladies (e.g., members of the British royal family and foreign monarchs). The order's emblem is a garter circlet with the motto Honi soit qui mal y pense (Anglo-Norman for "shamed be (the person) who thinks evil of it", in older translations "evil be to him who thinks of evil") in gold script. Members of the order wear it on ceremonial occasions.

Pedro Álvares Cabral (European Portuguese: [ˈpeðɾu ˈalvɐɾɨʃ kɐˈβɾal], Brazilian Portuguese: [ˈpedɾu ˈawvɐɾɨʃ, ˈawvɐɾɨs kɐˈbɾal]; born Pedro Álvares de Gouveia; c. 1467 or 1468 – c. 1520) was a Portuguese nobleman, colonizer, military commander, navigator and explorer regarded as the European discoverer of Brazil. He was the first human in history to ever be on four continents, uniting all of them in his famous voyage of 1500, where he also conducted the first substantial exploration of the northeast coast of South America and claimed it for Portugal. While details of Cabral's early life remain unclear, it is known that he came from a minor noble family and received a good education. He was appointed to head an expedition to India in 1500, following Vasco da Gama's newly opened route around Africa. The undertaking had the aim of returning with valuable spices and of establishing trade relations in India—bypassing the monopoly on the spice trade then in the hands of Arab, Turkish and Italian merchants. Although the previous expedition of Vasco da Gama to India, on its sea route, had recorded signs of land west of the southern Atlantic Ocean (in 1497), Cabral led the first known expedition to have touched four continents: Europe, Africa, South America, and Asia. His fleet of 13 ships sailed far into the western Atlantic Ocean, perhaps intentionally, and made landfall (April 1500) on what he initially assumed to be a large island. As the new land was within the Portuguese sphere according to the 1494 Treaty of Tordesillas, Cabral claimed it for the Portuguese Crown. He explored the coast, realizing that the large land mass was probably a continent, and dispatched a ship to notify King Manuel I of the new territory. The continent was South America, and the land he had claimed for Portugal later came to be known as Brazil. The fleet reprovisioned and then turned eastward to resume the journey to India. A storm in the southern Atlantic caused the loss of several ships, and the six remaining ships eventually rendezvoused in the Mozambique Channel before proceeding to Calicut in India. Cabral was originally successful in negotiating trading rights, but Arab merchants saw Portugal's venture as a threat to their monopoly and stirred up an attack by both Muslims and Hindus on the Portuguese entrepôt. The Portuguese sustained many casualties and their facilities were destroyed. Cabral took vengeance by looting and burning the Arab fleet and then bombarded the city in retaliation for its ruler having failed to explain the unexpected attack. From Calicut the expedition sailed to the Kingdom of Cochin, another Indian city-state, where Cabral befriended its ruler and loaded his ships with coveted spices before returning to Europe. Despite the loss of human lives and ships, Cabral's voyage was deemed a success upon his return to Portugal. The extraordinary profits resulting from the sale of the spices bolstered the Portuguese Crown's finances and helped lay the foundation of a Portuguese Empire that would stretch from the Americas to the Far East. Cabral was later passed over, possibly as a result of a quarrel with Manuel I, when a new fleet was assembled to establish a more robust presence in India. Having lost favor with the King, he retired to a private life of which few records survive. His accomplishments slipped mostly into obscurity for more than 300 years. Decades after Brazil's independence from Portugal in the 19th century, Cabral's reputation began to be rehabilitated by Emperor Pedro II of Brazil. Historians have long argued whether Cabral was Brazil's discoverer, and whether the discovery was accidental or intentional. The first question has been settled by the observation that the few, cursory encounters by explorers before him were barely noticed at the time and contributed nothing to the future development and history of the land which would become Brazil, the sole Portuguese-speaking nation in the Americas. On the second question, no definite consensus has been formed, and the intentional discovery hypothesis lacks solid proof. Nevertheless, although he was overshadowed by contemporary explorers, historians consider Cabral to be a major figure of the Age of Discovery.

The Battle of Villalar was a battle in the Revolt of the Comuneros fought on 23 April 1521 near the town of Villalar in Valladolid province, Spain. The royalist supporters of King Charles I won a crushing victory over the comuneros rebels. Three of the most important rebel leaders were captured, Juan de Padilla, Juan Bravo, and Francisco Maldonado. They were executed the next day, effectively ending armed resistance to Charles I.

The Boston Latin School is a magnet Latin grammar state school in Boston, Massachusetts. It has been in continuous operation since it was established on April 23, 1635, and is one of the oldest existing schools in the United States, the other being Collegiate School in New York City.

The siege of Santo Domingo was fought between April 23, 1655 and April 30, 1655, at the Spanish Colony of Santo Domingo. A force of 2,400 Spanish troops led by Governor Don Bernardino Meneses y Bracamonte, Count of Peñalba successfully resisted a force of 13,120 soldiers led by General Robert Venables and 34 ships under Admiral Sir William Penn of the English Commonwealth.

The Treaty or Peace of Oliva (Polish: Pokój Oliwski; Swedish: Freden i Oliva; German: Vertrag von Oliva) was one of the peace treaties ending the Second Northern War (1655–1660). It was signed on 3 May [O.S. 23 April] 1660. The Treaty of Oliva, the Treaty of Copenhagen in the same year, and the Treaty of Cardis in the following year marked the high point of the Swedish Empire. At Oliwa (Oliva), Poland, peace was made between Sweden, the Polish–Lithuanian Commonwealth, the Habsburgs and Brandenburg-Prussia. Sweden was accepted as sovereign in Swedish Livonia, Brandenburg was accepted as sovereign in Ducal Prussia and John II Casimir Vasa withdrew his claims to the Swedish throne. All occupied territories were restored to their prewar sovereigns. Catholics in Livonia and Prussia were granted religious freedom. The signatories were the Habsburg Holy Roman Emperor Leopold I, Elector Frederick William I of Brandenburg and King John II Casimir Vasa of Poland. Magnus Gabriel De la Gardie, the head of the Swedish delegation and the minor regency, signed on behalf of his nephew, King Charles XI of Sweden, who was still a minor.

Charles II (29 May 1630 – 6 February 1685) was King of Scotland from 1649 until 1651 and King of England, Scotland, and Ireland from the 1660 Restoration of the monarchy until his death in 1685. Charles II was the oldest surviving child of Charles I of England, Scotland and Ireland and Henrietta Maria of France. After Charles I's execution at Whitehall on 30 January 1649, at the climax of the English Civil War, the Parliament of Scotland proclaimed Charles II king on 5 February 1649. However, England entered the period known as the English Interregnum or the English Commonwealth with a republican government eventually led by Oliver Cromwell. Cromwell defeated Charles II at the Battle of Worcester on 3 September 1651, and Charles fled to mainland Europe. Cromwell became Lord Protector of England, Scotland and Ireland. Charles spent the next nine years in exile in France, the Dutch Republic and the Spanish Netherlands. A political crisis after Cromwell's death in 1658 resulted in the restoration of the monarchy in 1660, and Charles was invited to return to Britain. On 29 May 1660, his 30th birthday, he was received in London to public acclaim. Charles's English Parliament enacted the Clarendon Code, to shore up the position of the re-established Church of England. Charles acquiesced to these new laws even though he favoured a policy of religious tolerance. The major foreign policy issue of his early reign was the Second Anglo-Dutch War. In 1670, he entered into the Treaty of Dover, an alliance with his cousin, King Louis XIV of France. Louis agreed to aid him in the Third Anglo-Dutch War and pay him a pension, and Charles secretly promised to convert to Catholicism at an unspecified future date. Charles attempted to introduce religious freedom for Catholics and Protestant dissenters with his 1672 Royal Declaration of Indulgence, but the English Parliament forced him to withdraw it. In 1679, Titus Oates's fabrication of a supposed Popish Plot sparked the Exclusion Crisis when it was revealed that Charles's brother and heir presumptive, James, Duke of York, had become a Catholic. The crisis saw the birth of the pro-exclusion Whig and anti-exclusion Tory parties. Charles sided with the Tories and, after the discovery of the Rye House Plot to murder Charles and James in 1683, some Whig leaders were executed or forced into exile. Charles dissolved the English Parliament in 1681 and ruled alone until his death in 1685. A patron of the arts and sciences, Charles became known for his affability and friendliness, and for allowing his subjects easy access to his person. But he also showed an almost impenetrable reserve, especially concerning his political agendas. His court gained a reputation for moral laxity. Charles's marriage to Catherine of Braganza produced no surviving children, but the king acknowledged at least 12 illegitimate children by various mistresses. He was succeeded by his brother James.

Johann Sebastian Bach (31 March [O.S. 21 March] 1685 – 28 July 1750) was a German composer and musician of the late Baroque period. He is known for his prolific output across a variety of instruments and forms, including the orchestral Brandenburg Concertos; solo instrumental works such as the Cello Suites and Sonatas and Partitas for Solo Violin; keyboard works such as the Goldberg Variations and The Well-Tempered Clavier; organ works such as the Schübler Chorales and the Toccata and Fugue in D minor; and choral works such as the St. Matthew Passion and the Mass in B minor. He is known for his mastery of counterpoint, as heard in The Musical Offering and The Art of Fugue. Felix Mendelssohn precipitated the Bach Revival with a performance of the St. Matthew Passion in 1829. Ever since, Bach has been acclaimed as one of the greatest composers in the history of Western music. The Bach family had already produced several composers when Johann Sebastian was born in Eisenach, the youngest child of the city musician Johann Ambrosius Bach. After being orphaned at age 10, he lived for five years with his eldest brother, Johann Christoph, then continued his musical education in Lüneburg. In 1703 he returned to Thuringia, working as a musician for Protestant churches in Arnstadt and Mühlhausen. Around that time he also paid extended visits to the courts in Weimar, where he expanded his organ repertory, and the reformed court at Köthen, where he was mostly engaged with chamber music. By 1723 he was hired as Thomaskantor, church music director of the city of Leipzig and thus responsible for music in four Lutheran city churches and for the St. Thomas School. He decided to compose annual cycles of church cantatas, and also wrote music for Leipzig University's student ensemble, Collegium Musicum. In 1726 he began publishing his organ and other keyboard music. In Leipzig, he had difficult relations with his employer, as he had during some of his earlier positions. This situation was somewhat remedied when his sovereign, Augustus III of Poland, granted him the title of court composer of the Elector of Saxony in 1736. In the last decades of his life, Bach reworked and extended many of his earlier compositions. He died due to complications following eye surgery in 1750 at the age of 65. Four of his twenty children, Wilhelm Friedemann, Carl Philipp Emanuel, Johann Christoph Friedrich, and Johann Christian, became composers. Bach enriched established German styles through his mastery of counterpoint, harmonic and motivic organisation, and his adaptation of rhythms, forms, and textures from abroad, particularly Italy and France. His compositions include hundreds of cantatas, both sacred and secular. He composed Latin church music, Passions, oratorios, and motets. He adopted Lutheran hymns, not only in his larger vocal works but also in such works as his four-part chorales and his sacred songs. Bach wrote extensively for organ and other keyboard instruments. He composed concertos, for instance for violin and for harpsichord, and suites, as chamber music as well as for orchestra. Many of his works use contrapuntal techniques like canon and fugue. Several decades after his death, in the 18th century, Bach was still primarily known as an organist. Several biographies of Bach were published in the 19th century, and by the end of that century all of his known music had been printed. Dissemination of Bach scholarship continued through periodicals (and later websites) devoted to him, other publications such as the Bach-Werke-Verzeichnis (BWV, a numbered catalogue of his works), and new critical editions of his compositions. His music was further popularised by a multitude of arrangements, including the "Air on the G String" and "Jesu, Joy of Man's Desiring", and recordings, among them three boxed sets of performances of his complete œuvre marking the 250th anniversary of his death.

The Second Serbian Uprising was the second phase of the Serbian Revolution against the Ottoman Empire, which erupted shortly after the re-annexation of the country to the Ottoman Empire in 1813. The occupation was enforced following the defeat of the First Serbian Uprising (1804–1813), during which Serbia existed as a de facto independent state for over a decade. The second revolution ultimately resulted in Serbian semi-independence from the Ottoman Empire. The Principality of Serbia was established, governed by its own parliament, constitution and royal dynasty. De jure independence, however, was attained in 1878, following the decisions of the Congress of Berlin.

The University of Notre Dame du Lac is a private Catholic research university in Notre Dame, Indiana, United States. The university was founded in 1842 by members of the Congregation of Holy Cross, a Catholic religious order of priests and brothers. Its main campus covers 1,261 acres in a suburban setting and has landmarks such as the Golden Dome main building, Sacred Heart Basilica, the Grotto of Our Lady of Lourdes, the Word of Life mosaic mural, and Notre Dame Stadium.

The Chilean Civil War of 1891, or the Second Chilean Civil War or Revolution of 1891, was a civil war in Chile fought between forces supporting Congress and forces supporting the President, José Manuel Balmaceda, from 16 January 1891 to 18 September 1891. The war saw a confrontation between the Chilean Army and the Chilean Navy, siding with the president and the Congress, respectively. This conflict ended with the defeat of the Chilean Army and the presidential forces, and with President Balmaceda committing suicide as a consequence of the defeat. In Chilean historiography the war marks the end of the Liberal Republic and the beginning of the Parliamentary Era.

World War I, or the First World War, also known as the Great War, was a global conflict between two coalitions: the Allies and the Central Powers. One of the deadliest conflicts in history, World War I caused 15 to 22 million deaths, including those resulting from war crimes and genocides. The war also contributed to the spread of the Spanish flu pandemic. The conflict saw important developments in weaponry, including machine guns, artillery, aircraft, chemical weapons, and tanks.

The Grand National Assembly of Turkey is the unicameral legislative branch of the Turkish government. It is the sole body given the legislative prerogatives by the unitary Turkish Constitution.

Cardiff City Football Club is a professional association football club based in Cardiff, Wales. The club competes in the EFL Championship in the 2026–27 season following promotion. Founded in 1899 as Riverside A.F.C., the club changed its name to Cardiff City in 1908 and entered the Southern Football League in 1910 before joining the English Football League in 1920. The team has spent 17 seasons in the top tier of English football, the longest period being between 1921 and 1929. Their most recent season in the top flight was the 2018–19 Premier League season.

The April Constitution of Poland (Polish: Ustawa konstytucyjna 23 IV 1935 or Konstytucja kwietniowa) was the general law passed by the act of the Polish Sejm on 23 April 1935. It introduced in the Second Polish Republic an authoritarian presidential system that no longer operated on the basis of the functional separation of powers. The constitution was adopted in violation of the previous March Constitution of 1921 as well as the rules of procedure of parliament, which is why it was questioned by a significant part of the opposition to the Sanacja government.

The Rhythm Club fire (or The Natchez Dance Hall Holocaust) was a fire in a dance hall in Natchez, Mississippi on the night of April 23, 1940, which killed 209 Black Americans and severely injured many others. Hundreds of people were trapped inside the building. It is the fourth deadliest assembly and club fire in U.S. history.

World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many engaging in total war on an unprecedented scale. World War II was the deadliest conflict in history, causing the deaths of 60 to 75 million people, a majority of whom were civilians. Millions died as a result of massacres, starvation, disease, and genocides, including the Holocaust. After the Allied victory, Germany, Austria, Japan, and Korea were occupied, and German and Japanese leaders were tried for war crimes.

Adolf Hitler (20 April 1889 – 30 April 1945) was an Austrian-born German politician who was dictator of Germany in the Nazi era from 1933 until his suicide in 1945. He rose to power as the leader of the Nazi Party, becoming the chancellor of Germany in 1933 and then taking the title of Führer und Reichskanzler in 1934. Germany's invasion of Poland on 1 September 1939 under his leadership marked the outbreak of the Second World War. Throughout the ensuing conflict, Hitler was closely involved in the direction of German military operations and was central to the perpetration of the genocide of about six million Jews in the Holocaust as well as the deaths of millions of other victims. Hitler was born in Braunau am Inn in Austria-Hungary and moved to Germany in 1913. He was decorated during his service in the German Army in the First World War, receiving the Iron Cross. In 1919, he joined the German Workers' Party (DAP), the precursor of the Nazi Party, and in 1921, was appointed the leader of the Nazi Party. In 1923, he attempted to seize governmental power in a failed coup in Munich and was sentenced to five years in prison, serving just over a year. While there, he dictated the first volume of his autobiography and political manifesto Mein Kampf ('my struggle'). After his early release in 1924, he gained popular support by attacking the Treaty of Versailles as well as promoting pan-Germanism, antisemitism, and anti-communism with charismatic oratory and Nazi propaganda. He frequently denounced communism as being part of an international Jewish conspiracy. Following elections to the Reichstag in November 1932, the Nazi Party held the most seats in the Reichstag ('parliament'), but not a majority. Subsequently, former chancellor Franz von Papen and other conservative politicians convinced Reichspräsident ('president') Paul von Hindenburg to appoint Hitler as chancellor on 30 January 1933. Shortly thereafter, on 23 March, the Reichstag passed the Enabling Act of 1933, which ultimately began the Weimar Republic's transformation into Nazi Germany. Upon Hindenburg's death on 2 August 1934, Hitler replaced him as head of state and thereafter, Germany became a totalitarian dictatorship. Domestically, Hitler began to implement numerous racist policies, which marginalised and scapegoated German Jews. His first six years in power resulted in rapid economic recovery from the Great Depression, the abrogation of restrictions imposed on Germany after the First World War, and the annexation of territories inhabited by millions of ethnic Germans, which won him significant popularity. One of Hitler's key goals was Lebensraum ('living space') for the German people in Eastern Europe. His aggressive, expansionist foreign policy is considered the primary cause of World War II in Europe. On 1 September 1939, Hitler oversaw the German invasion of Poland, thereby causing Britain and France to declare war on Germany. After ordering an invasion of the Soviet Union in June 1941, he declared war on the United States in December of the same year. By the end of 1941, German forces and the European Axis powers occupied most of Europe and North Africa. These gains were gradually reversed after 1941 until the Allied forces defeated the German military in 1945. On 29 April 1945, Hitler married his longtime partner, Eva Braun, in the Führerbunker ('leader's bunker') in Berlin. They committed suicide the next day to avoid capture by the Soviet Red Army. The historian and biographer Ian Kershaw described Hitler as "the embodiment of modern political evil". Under Hitler's leadership and racist ideology, the Nazi regime was responsible for the genocide of an estimated six million Jews and millions of other victims, whom he and his followers deemed Untermenschen ('subhumans') or socially undesirable. Hitler and the Nazis were also responsible for the deliberate killing of an estimated 19.3 million civilians and prisoners of war. In addition, 28.7 million soldiers and civilians died as a result of military action in the European theatre. In absolute terms, the number of civilians killed during World War II was unprecedented in warfare, and the casualties make it the deadliest conflict in history.

Manuel Acuña Roxas (Tagalog: [maˈnwel aˈkuɲa ˈɾɔhas]; January 1, 1892 – April 15, 1948) was the fifth president of the Philippines, serving from 1946 until his death in 1948. He served briefly as the third and last President of the Commonwealth of the Philippines from May 28, 1946, to July 4, 1946, and became the first President of the Independent Third Philippine Republic after the United States ceded its sovereignty over the Philippines.

The Chinese Civil War was fought between the government of the Republic of China (ROC), led by the Kuomintang (KMT), and the Chinese Communist Party (CCP). Armed conflict continued intermittently from 1 August 1927 until Communist victory that led to the Kuomintang's retreat to Taiwan on 7 December 1949. The war is generally divided into two phases with an interlude. In 1926 and 1927, the KMT and the CCP, allied with one another in the First United Front, had carried out a very successful campaign, the Northern Expedition, against warlords in central China. The CCP calls this the First Revolutionary Civil War. The united front broke up and war broke out between the KMT and the CCP on 1 August 1927. The CCP calls this the Second Revolutionary Civil War; it lasted until 1937. From 1937 to 1945, hostilities were mostly put on hold as the Second United Front fought the Japanese invasion of China with eventual help from the Allies of World War II. However, armed clashes between the groups remained common. The civil war resumed as soon as it became apparent that Japanese defeat was imminent, with the communists gaining the upper hand in the second phase of the war from 1945 to 1949, generally referred to as the Chinese Communist Revolution. The CCP calls this the Third Revolutionary Civil War. The Communists gained control of mainland China and proclaimed the People's Republic of China (PRC) in October 1949, while the Republic of China government retreated to the island of Taiwan in December. Starting in the 1950s, a lasting political and military stand-off between the two sides of the Taiwan Strait has ensued, with the ROC in Taiwan and the PRC on the mainland both claiming to be the legitimate government of all China. In addition, ROC guerrilla forces continued to operate in mainland China and northern Burma until 1961. After the Second Taiwan Strait Crisis, both tacitly ceased to engage in open conflict in 1979; however, no armistice or peace treaty has ever been signed.

The Cold War was a period of international geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc. It began in the aftermath of the Second World War and ended with the dissolution of the Soviet Union in 1991. The term cold war is used because there was no direct fighting between the two superpowers, though each supported opposing sides in regional conflicts known as proxy wars. In addition to the struggle for ideological and economic influence and an arms race in both conventional and nuclear weapons, the Cold War was expressed through technological rivalries such as the Space Race, espionage, propaganda campaigns, embargoes, and sports diplomacy.

The Algiers putsch, also known as the putsch of the generals, was a failed coup d'état intended to force French President Charles de Gaulle not to abandon French Algeria, the resident European community and pro-French Algerians. Organised in French Algeria by retired French Army generals Maurice Challe, Edmond Jouhaud, André Zeller and Raoul Salan, it took place from the afternoon of 21 to 26 April 1961 in the midst of the Algerian War (1954–1962) and brought the nation to the brink of a civil war.

Aeroflot Flight 2723 was a Soviet domestic passenger flight from Bina International Airport to Makhachkala Airport. On 23 April 1966, the Ilyushin Il-14 flying this route ditched in the Caspian Sea following unexplained engine problems. None of the 33 on board survived.

The Soviet space program was the state space program of the Soviet Union, active from 1951 until the dissolution of the Soviet Union in 1991. Unlike its Space Race competitor, the United States, which consolidated its space program under NASA, the Soviet space program was divided between several competing design bureaus led by Korolev, Kerimov, Keldysh, Yangel, Glushko, Chelomey, Makeyev, Chertok and Reshetnev, often under the Ministry of General Machine-Building. The program was an important part of the Soviet claim to superpower status.

The Vietnam War was an armed conflict in Vietnam, Laos, and Cambodia fought between North Vietnam and South Vietnam and their allies. North Vietnam was supported by the Soviet Union and China, while South Vietnam was supported by the United States and other anti-communist nations. The conflict was the second of the Indochina wars and a proxy war of the Cold War. The Vietnam War was one of the postcolonial wars of national liberation, a theater in the Cold War, and a civil war, with civil warfare a defining feature from the outset. Direct US military involvement escalated from 1965 until US forces were withdrawn in 1973. The fighting spilled into the Laotian and Cambodian civil wars, which ended with all three countries becoming communist in 1975.

The Bangladesh Liberation War, also known as the Bangladesh War of Independence, was an armed conflict sparked by the rise of the Bengali nationalist and self-determination movement in East Pakistan, which resulted in the independence of Bangladesh with the help of India. The war began when the Pakistani military junta based in West Pakistan—under the orders of Yahya Khan—launched Operation Searchlight against East Pakistanis on the night of 25 March 1971, initiating the Bangladesh genocide.

On 23 April 1979, SAETA Flight 011, a Vickers Viscount passenger aircraft of Ecuadorian airline SAETA, crashed in a mountainous region of Pastaza Province, Ecuador, killing all 57 people on board. The wreckage of the aircraft was not found until five years later.

Clement Blair Peach was a New Zealand teacher who was killed during an anti-racism demonstration in Southall, London, England. A campaigner and activist against the far right, in April 1979 Peach took part in an Anti-Nazi League demonstration in Southall against a National Front election meeting in the town hall and was hit on the head, probably by a member of the Special Patrol Group (SPG), a specialist unit within the Metropolitan Police Service. He died in hospital that night.

Coca-Cola, or Coke, is a cola soft drink manufactured by the Coca-Cola Company. In 2013, Coke products were sold in over 200 countries and territories worldwide, with consumers drinking more than 1.8 billion company beverage servings each day. Coca-Cola ranked No. 94 in the 2024 Fortune 500 list of the largest United States corporations by revenue. Based on Interbrand's "best global brand" study of 2023, Coca-Cola was the world's sixth most valuable brand.

Namibia, officially the Republic of Namibia, is a country in Southern Africa. It borders the Atlantic Ocean to the west, Zambia and Angola to the north, Botswana to the east, and South Africa to the south; in the northeast, approximating a quadripoint, Zimbabwe lies less than 200 metres (660 ft) away along the Zambezi river near Kazungula, Zambia. Namibia's capital and largest city is Windhoek.

Eritrea, officially the State of Eritrea, is a country in the Horn of Africa region of East Africa. Its capital and largest city is Asmara. The country is bordered by Ethiopia to the south, Sudan to the west, and Djibouti to the southeast. The northeastern and eastern parts of Eritrea have an extensive coastline along the Red Sea. The country has a total area of approximately 117,600 km2 (45,406 sq mi), and includes the Dahlak Archipelago and several of the Hanish Islands.

Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, formerly known as Ceylon, is an island country in South Asia. It is located in the Indian Ocean, southwest of the Bay of Bengal, and is separated from India by the Gulf of Mannar and the Palk Strait. Sri Lanka shares a maritime border with the Maldives to the southwest and India to the northwest, and lies across the Bay of Bengal from Bangladesh and Myanmar to the northeast and the Andaman and Nicobar Islands of India to the east. Its executive and judicial capital is Colombo, which is also its largest city and the political, financial and cultural centre of the country; neighboring Sri Jayawardenepura Kotte is the legislative capital. Sri Lanka's population is 22 million. About 74% of the population are Sinhalese, who speak the Sinhala language, and about 15% are Tamils who speak the Tamil language. Other long-established ethnic groups include the Moors, Indian Tamils, Burghers, Malays, Chinese, and Vedda.

On April 23, 2018, a vehicle-ramming attack occurred when a rented van was driven along Yonge Street through the North York City Centre business district in Toronto, Ontario, Canada. The driver, 25-year-old Alek Minassian, targeted pedestrians, killing 11 and injuring 15, some critically. The attack started at the intersection of Yonge Street and Finch Avenue and proceeded south along the sidewalks of Yonge Street to near Sheppard Avenue. Nine of the eleven killed were women. The perpetrator was arrested just south of the crime scene, after exiting his vehicle and attempting to commit suicide by cop.

On 23 April 2024 at 09:32 MYT, two Royal Malaysian Navy helicopters – an AgustaWestland AW139 and a Eurocopter Fennec – collided over the Malaysian town of Lumut during a military parade rehearsal celebrating the 90th anniversary of the Royal Malaysian Navy. Ten people – seven on the AW139 and three on the Fennec – were killed. There were no survivors. Malaysian investigators determined the crash was caused by pilot error.