March 15 in History

The consuls were the two highest elected public officials of the Roman Republic. Romans considered the consulship the second-highest level of the cursus honorum—an ascending sequence of public offices to which politicians aspired—after that of the censor, which was reserved for former consuls. Each year, the centuriate assembly elected two consuls to serve jointly for a one-year term. The consuls alternated each month holding fasces when both were in Rome. A consul's imperium extended over Rome and all its provinces.

The Roman Republic was the era of classical Roman civilisation beginning with the overthrow of the Roman Kingdom and ending in 27 BC with the establishment of the Roman Empire following the War of Actium. During this period, Rome's control expanded from the city's immediate surroundings to hegemony over the entire Mediterranean world.

Julius Caesar, the Roman dictator, was assassinated on the Ides of March (15 March), 44 BC, by a group of senators during a Senate session at the Curia of Pompey, located within the Theatre of Pompey in Rome. The conspirators, numbering 60 individuals and led by Marcus Junius Brutus, Gaius Cassius Longinus, and Decimus Junius Brutus Albinus, stabbed Caesar approximately 23 times. They justified the act as a defense of the Roman Republic, asserting that Caesar's accumulation of lifelong political authority—including his perpetual dictatorship and other honors—threatened republican traditions. The assassination failed to achieve its immediate objective of restoring the Republic's institutions. Instead, it precipitated Caesar's posthumous deification and was followed by the Liberators' civil war (43–42 BC) between his supporters and the conspirators, which became a stage in the collapse of the Republic. These events ultimately culminated in the rise of the Roman Empire under Augustus, marking the beginning of the Principate era.

Flavius Claudius Constantius Gallus (326 – 354) was a statesman and ruler in the eastern provinces of the Roman Empire from 351 to 354, as Caesar under emperor Constantius II (r. 337–61), his cousin. A grandson of emperor Constantius Chlorus (r. 293–306) and empress Flavia Maximiana Theodora, and a son of Julius Constantius and Galla, he belonged to the Constantinian dynasty. Born during the reign of his uncle Constantine the Great (r. 306–37), he was among the few male members of the imperial family to survive the purge that followed Constantine's death. Under Constantius II, Gallus served as deputy emperor, based in Antioch and married to Constantius' sister Constantina. He dealt with a Jewish revolt in the years 351-352. Gallus ultimately fell out of favor with Constantius and was executed, being replaced as Caesar by his younger half-brother Julian.

Odoacer (c. 433 – 15 March 493 AD), also spelled Odovacer or Odovacar, was a barbarian soldier and statesman from the Middle Danube who, as an officer of the Roman army, deposed the Western Roman child emperor Romulus Augustulus to become the ruler of Italy in the period 476–493 AD. His takeover is traditionally understood as marking the end of the Western Roman Empire. Although he ruled Italy, Odoacer styled himself a client of the Eastern emperor Zeno in Constantinople. He was addressed not only as rex but also as dux and patrician, the latter title granted by Zeno. In the sole surviving document from his chancery—and by the consul Basilius—Odoacer used the title of king. Backed by the Roman Senate, he distributed land with little resistance. Soldier unrest in 477–478 caused violence, but his later reign was stable. Though an Arian, he seldom interfered in the Trinitarian state church. Before taking control of Italy, Odoacer led the revolt of Herulian, Rugian, and Scirian troops that deposed Romulus Augustulus on 4 September 476. The boy-emperor, elevated by his father Orestes less than a year earlier, never gained authority beyond central Italy. With senatorial support, Odoacer then ruled autonomously while formally recognizing both Julius Nepos and Zeno. After Nepos's murder in 480, Odoacer invaded Dalmatia, executed the conspirators, and annexed the region within two years. In 484, when Illus, Eastern magister militum, sought his aid against Zeno, Odoacer invaded the emperor's western provinces. Zeno retaliated by spurring the Rugii to attack Italy, but Odoacer crushed them north of the Danube in 487–488. To end the conflict, Zeno unleashed the Ostrogoth Theodoric the Great, who invaded in 489, seized most of Italy by 490, and forced Odoacer into Ravenna. After the city surrendered on 5 March 493, Theodoric invited him to a reconciliation banquet, where he murdered Odoacer and claimed the throne.

Michael III (Ancient Greek: Μιχαήλ, romanized: Michaḗl; 9/10 January 840 – 24 September 867), also known as Michael the Drunkard, was Byzantine emperor from 842 to 867. Michael III was the third and traditionally last member of the Amorian (or Phrygian) dynasty. He was given the disparaging epithet the Drunkard (Ancient Greek: ὁ Μέθυσος, romanized: ō Mtistḗs) by the hostile historians of the succeeding Macedonian dynasty, but modern historical research has rehabilitated his reputation to some extent, demonstrating the vital role his reign played in the resurgence of Byzantine power in the 9th century. He was also the youngest person to bear the imperial title (aged 4-8 months), as well as the youngest to succeed as senior emperor (aged 2) in the Roman Empire. In 867, Michael was assassinated by his successor, Basil I.

Abūʾl-Ḥusayn Yaḥyā ibn al-Ḥusayn ibn al-Qāsim ibn Ibrāhīm Ṭabāṭabā al-Ḥasanī (al-Rass/Medina, 859 – Sa'dah, 18 August 911), better known by his honorific title of al-Hādī ilāʾl-Ḥaqq (Arabic: الهادي الى الحق, lit. 'the Guide to the Truth'), was a religious and political leader in the Arabian Peninsula. He was the first Zaydi imam who ruled portions of Yemen from 897 to 911. He is also the ancestor of the Rassid dynasty which ruled Yemen intermittently until the North Yemen Civil War in 1962.

Henry the Fowler (German: Heinrich der Vogler or Heinrich der Finkler; Latin: Henricus Auceps or Henry I (German: Heinrich I.); c. 876 – 2 July 936) was the duke of Saxony from 912 and the king of East Francia from 919 until his death in 936. As the first non-Frankish king of East Francia, he established the Ottonian dynasty of kings and emperors, and he is generally considered to be the founder of the medieval German state, known until then as East Francia. An avid hunter, he obtained the epithet "the Fowler" because he was allegedly fixing his birding nets when messengers arrived to inform him that he was to be king. He was born into the Liudolfing line of Saxon dukes. He succeeded to the dukedom when his father Otto I of Saxony died in 912. The new duke launched a rebellion against the king of East Francia, Conrad I, over the rights to lands in the Duchy of Thuringia. They reconciled in 915 and on his deathbed in 918, Conrad recommended Henry as the next king, considering the duke the only one who could hold the kingdom together in the face of internal revolts and external Magyar raids. Henry was elected and crowned king in 919. He went on to defeat the rebellious dukes of Bavaria and Swabia, consolidating his rule. Through successful warfare and a dynastic marriage, Henry acquired Lotharingia as a vassal in 925. Unlike his Carolingian predecessors, Henry did not seek to create a centralized monarchy, ruling through federated autonomous stem duchies instead. Henry built an extensive system of fortifications and mobile heavy cavalry across Germany to neutralize the Magyar threat and in 933 routed them at the Battle of Riade, ending Magyar attacks for the next 21 years and giving rise to a sense of German nationhood. Henry greatly expanded German hegemony in Europe with his army's defeat of the Slavs in 929 at the Battle of Lenzen along the Elbe river, by compelling the submission of Duke Wenceslaus I of Bohemia through an invasion of the Duchy of Bohemia the same year and by conquering Danish realms in Schleswig in 934. Henry's hegemonic status north of the Alps was acknowledged by the kings Rudolph of West Francia and Rudolph II of Upper Burgundy, who both accepted a place of subordination as allies in 935. Henry planned an expedition to Rome to be crowned emperor by the pope, but the design was thwarted by his death. Henry prevented a collapse of royal power, as had happened in West Francia, and left a much stronger kingdom to his successor Otto I. He was buried at Quedlinburg Abbey, established by his wife Matilda in his honour.

Dom Afonso I nicknamed "the Conqueror", "the Founder" and "the Great" by the Portuguese, was the first king of Portugal, from 26 July 1139 until his death on 6 December 1185. He achieved the independence of the County of Portugal, establishing a new kingdom and doubling its area with the Reconquista, an objective that he pursued until his death.

The Battle of Halmyros, known by earlier scholars as the Battle of the Cephissus or Battle of Orchomenos, was fought on 15 March 1311, between the forces of the Frankish Duchy of Athens and its vassals under Walter of Brienne against the mercenaries of the Catalan Company, resulting in a decisive victory for the mercenaries. Engaged in conflict with their original employers, the Byzantine Empire, the Catalan Company had traversed the southern Balkans and arrived in southern Greece in 1309. The new Duke of Athens, Walter of Brienne, hired them to attack the Greek ruler of neighbouring Thessaly. Although the Catalans conquered much of the region for him, Walter refused to pay them and prepared to forcibly expel them from their gains. The two armies met at Halmyros in southern Thessaly (or at the Boeotic Cephissus, near Orchomenos, according to an earlier interpretation). On the Athenian side, many of the most important lords of Frankish Greece were present. The Catalans were considerably outnumbered and weakened by the reluctance of their Turkish auxiliaries to fight. They did have the advantage of selecting the battleground, positioning themselves behind marshy terrain, which they further inundated. Walter, a prideful man and confident in the prowess of his heavy cavalry, charged headlong against the Catalan line. The marsh impeded the Frankish attack and the Catalan infantry stood firm. The Turks re-joined the Company and the Frankish army was routed, with Walter and almost the entire knighthood of his realm falling in the field. Subsequently the Catalans took over the leaderless Duchy of Athens, ruling that part of Greece until the 1380s.

Treaty of Lubowla of 1412 was a treaty between Władysław II, King of Poland, and Sigismund of Luxemburg, King of Hungary. Negotiations took place in the town of Lublo (today Stará Ľubovňa, Slovakia) and a treaty confirmed later that year in Buda.

A dam failure or dam burst is a catastrophic type of structural failure characterized by the sudden, rapid, and uncontrolled release of impounded water or the likelihood of such an uncontrolled release. Between the years 2000 and 2009 more than 200 notable dam failures happened worldwide.

General Charles Cornwallis, 1st Marquess Cornwallis (31 December 1738 – 5 October 1805) was a British Army officer, Whig politician and colonial administrator. In the United States and United Kingdom, he is best known as one of the leading British general officers in the American War of Independence. His surrender in 1781 to a combined Franco-American force at the siege of Yorktown ended significant hostilities in North America. Cornwallis later served as a civil and military governor in Ireland, where he helped to bring about the Act of Union; and in India, where he helped to enact the Cornwallis Code and the Permanent Settlement. Born into an aristocratic family and educated at Eton College and the University of Cambridge, Cornwallis joined the British Army in 1757, seeing action in the Seven Years' War. Upon his father's death in 1762 he succeeded to his peerage and entered the House of Lords. From 1766 to 1805 he was colonel of the 33rd Regiment of Foot. Cornwallis next saw military action in 1776 in the American War of Independence. Active in the advance forces of many campaigns, in 1780 he inflicted a major defeat on the Continental Army at the Battle of Camden. He also commanded British forces in the March 1781 Pyrrhic victory at Guilford Court House. Cornwallis surrendered his army at Yorktown in October 1781 after an extended campaign through the Southern colonies, marked by disagreements between him and his superior, Sir Henry Clinton. Despite this defeat, Cornwallis retained the confidence of successive British governments and continued to enjoy an active career. Knighted in 1786, he was in that year appointed to be Governor-General and commander-in-chief in India. There he enacted numerous significant reforms within the East India Company and its territories, including the Cornwallis Code, part of which implemented important land taxation reforms known as the Permanent Settlement. From 1789 to 1792 he led British and Company forces in the Third Anglo-Mysore War to defeat the Mysorean ruler Tipu Sultan. Returning to Britain in 1794, Cornwallis was given the post of Master-General of the Ordnance. In 1798 he was appointed Lord Lieutenant and Commander-in-chief of Ireland, where he oversaw the response to the 1798 Irish Rebellion, including a French invasion of Ireland, and was instrumental in bringing about the Union of Great Britain and Ireland. Following his Irish service, Cornwallis was the chief British signatory to the 1802 Treaty of Amiens and was reappointed to India in 1805. He died in India not long after his arrival.

Newburgh is a city in Orange County, New York, United States. With a population of 28,856 as of the 2020 census, it is a principal city of the Kiryas Joel–Poughkeepsie–Newburgh metropolitan area with an estimated 712,000 residents. Located 60 miles (97 km) north of New York City, and 90 miles (140 km) south of Albany on the Hudson River within the Hudson Valley Area, the city of Newburgh is located near Stewart International Airport, one of the primary airports for Downstate New York.

Maine ( MAYN) is a state in the New England region of the United States, and the northeasternmost state in the contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Canadian provinces of New Brunswick and Quebec to the northeast and northwest, and shares a maritime border with Nova Scotia. It is the only state to border only one other state (New Hampshire). Maine is the largest state in New England by total area, almost as large as the combined area of the remaining five states. Of the 50 U.S. states, it is the 12th-smallest by area, the 9th-least populous, the 13th-least densely populated, and the most rural. As of 2024, Maine's population stood at a Census-estimated 1,400,000, the state's highest-ever population estimate. Maine's capital is Augusta, while its most populous city is Portland. The territory of Maine has been inhabited by Indigenous populations for about 12,000 years, after the glaciers retreated during the last ice age. At the time of European arrival, several Algonquian-speaking nations governed the area and these nations are now known as the Wabanaki Confederacy. The first European settlement in the area was by the French in 1604 on Saint Croix Island, founded by Pierre Dugua, Sieur de Mons. The first English settlement was the short-lived Popham Colony, established by the Plymouth Company in 1607. A number of Irish and English settlements were established along the coast of Maine in the 1620s, although the rugged climate and conflict with the local Indigenous people and the French caused many to fail. Maine experienced significant warfare during the 17th century. As Maine entered the 18th century, only a half dozen European settlements had survived. Loyalist and Patriot forces contended for Maine's territory during the American Revolution. During the War of 1812, the largely undefended eastern region of Maine was occupied by British forces with the goal of annexing it to Canada via the Colony of New Ireland, but returned to the United States following failed British offensives on the northern border, mid-Atlantic and south which produced a peace treaty that restored the pre-war boundaries. Maine was part of the Commonwealth of Massachusetts until 1820 when it voted to secede from Massachusetts to become a separate state. On March 15, 1820, under the Missouri Compromise, Maine was admitted to the Union as the 23rd state. Today, Maine is known for its jagged, rocky Atlantic Ocean and bay-shore coastlines, mountains, heavily forested interior, and its cuisine, particularly wild lowbush blueberries and seafood such as lobster and clams. Coastal and Down East Maine have emerged as important centers for the creative economy, especially in the vicinity of Portland, which has also brought gentrification to the city and its metropolitan area.

Benjamin Morrell (July 5, 1795 – c. 1839) was an American sea captain, explorer and trader who made a number of voyages, mainly to the Atlantic, the Southern Ocean and the Pacific Islands. In a ghost-written memoir, A Narrative of Four Voyages, which describes his sea-going life between 1823 and 1832, Morrell included numerous claims of discovery and achievement, many of which have been disputed by geographers and historians, and in some cases have been proven false. He ended his career as a fugitive, having wrecked his ship and misappropriated parts of the salvaged cargo. Morrell had an eventful early career, running away to sea at the age of 17 and being twice captured and imprisoned by the British during the War of 1812. He subsequently sailed before the mast for several years before being appointed as chief mate, and later as captain, of the New York sealer Wasp. In 1823, he took Wasp for an extended voyage into subantarctic waters, and on his return made unsubstantiated claims to have travelled beyond 70°S and to have sighted new coastlines in the area now known as the Weddell Sea. His subsequent voyages mainly centered on the Pacific, where he attempted to develop trading relations with the indigenous populations. Although Morrell wrote of the enormous potential wealth to be obtained from the Pacific trade, his endeavours were, in the main, commercially unprofitable. Despite his reputation among his contemporaries for untruth and fantasy, Morrell has been defended by some later commentators who, while questioning his general reliability, maintain that not all his life was fraud and exaggeration. They believe that aside from the bombast and boastful tone of the account that carries his name, there is evidence that he carried out useful work, such as his discovery of large-scale guano deposits which led to the development of a full-scale industry. He is believed to have died in 1838 or 1839, in Mozambique; there is, however, evidence to suggest that this death might have been staged, and that he lived on in exile, possibly in South America.

The Hungarian Revolution of 1848, also known in Hungary as Hungarian Revolution and War of Independence of 1848–1849 (Hungarian: 1848–49-es forradalom és szabadságharc) was one of a number of European Revolutions of 1848 and was closely linked to other revolutions of 1848 in the Habsburg areas. Although the Hungarian War of Independence failed, it is one of the most significant events in Hungary's modern history, forming the cornerstone of modern Hungarian national identity—the anniversary of the Revolution's outbreak, 15 March, is one of Hungary's three national holidays. In April 1848, Hungary became the third country of Continental Europe (after France, in 1791, and Belgium, in 1831) to enact a law implementing democratic parliamentary elections. The new suffrage law (Act V of 1848) transformed the old feudal parliament (Estates General) into a democratic representative parliament. This law offered the widest right to vote in Europe at the time. The April laws utterly erased all privileges of the Hungarian nobility. The crucial turning point came when the new Austrian monarch Franz Joseph I arbitrarily revoked the April laws without any legal right (since they had already been ratified by King Ferdinand I). This unconstitutional act irreversibly escalated the conflict between him and the Hungarian parliament. The new constrained Stadion Constitution of Austria, the revocation of the April laws, and the Austrian military campaign against the Kingdom of Hungary resulted in the fall of the pacifist Batthyány government (who sought agreement with the court) and led to Lajos Kossuth's followers (who demanded full independence for Hungary) suddenly gaining power in the parliament. Austrian military intervention in the Kingdom of Hungary resulted in strong anti-Habsburg sentiment among Hungarians, and the events in Hungary grew into a war for total independence from the Habsburg dynasty. Around 40% of the private soldiers in the Hungarian Revolutionary Volunteer Army consisted of ethnic minorities of the country. Regarding the officer staff of Hungary: Around half of the officers and generals of the Hungarian Honvéd Army had foreign origin. There were at least as many ethnic Hungarian professional officers in the Imperial Habsburg army as in the Hungarian revolutionary Honvéd army. In regard to diplomacy and foreign policy during the revolution, the Hungarian liberals - similar to the other European liberal revolutionaries of 1848 – were primarily motivated by ideological considerations. They supported countries and forces that aligned with their new moral and political standards. They also believed that governments and political movements sharing the same modern liberal values should form an alliance against the "feudal type" of monarchies. This outlook was similar to modern liberal internationalism. After a series of serious Austrian defeats in 1849, the Austrian Empire came close to the brink of collapse. The new emperor Franz Joseph I had to call for Russian help in the name of the Holy Alliance. In the hope of Russian military support, the young Emperor Franz Joseph kissed the hands of the Ruler of all the Russians in Warsaw on 21 May 1849. Nicholas I of Russia agreed with Franz Joseph and sent a 200,000 strong army with 80,000 auxiliary forces. The joint Russo-Austrian army finally defeated the Hungarian forces, Habsburg power was restored and Hungary was placed under martial law.

The French Third Republic was the system of government adopted in France from 4 September 1870, when the Second French Empire collapsed during the Franco-Prussian War, until 10 July 1940, after the Fall of France during World War II led to the formation of the Vichy government. The French Third Republic was a parliamentary republic.

The Archbishop of New York is the head of the Archdiocese of New York, who is responsible for looking after its spiritual and administrative needs. As the archdiocese is the metropolitan see of the Catholic ecclesiastical province encompassing nearly all of the state of New York, the Archbishop of New York also administers the bishops who head the suffragan dioceses of Albany, Brooklyn, Buffalo, Ogdensburg, Rochester, Rockville Centre and Syracuse. The current archbishop is Ronald Hicks.

The Australia and New Zealand tour of the England cricket team in 1876–77 was at the time considered to be another professional first-class cricket tour of the colonies, as similar tours had occurred previously, but retrospectively it became classified as the first Test cricket tour of Australia by the English cricket team. The English team is sometimes referred to as James Lillywhite's XI. In all, they played 23 matches but only three including the two Tests are recognised as first-class. The first match started at the Adelaide Oval on 16 November 1876 and the last at the same venue on 14 April 1877. There were fifteen matches in Australia and, between January and March, eight in New Zealand.

The Sikkim expedition (Chinese: 隆吐山戰役; pinyin: Lóngtǔ Shān Zhànyì; lit. 'Battle of the Longtu Mountain') was an 1888 British military expedition to expel Tibetan forces from Sikkim. The roots of the conflict lay in British–Tibetan competition for suzerainty over Sikkim.

The Lobau bombing was a bomb attack in Paris, France, carried out on 15 March 1892, by the anarchist militant Théodule Meunier against the Lobau barracks. Organized four days after the Saint-Germain bombing, it was one of the first attacks of the Ère des attentats (1892–1894). The explosion caused material damage in the surrounding area but killed or injured no one. Meunier managed to carry out the Véry bombing a month later before fleeing to the United Kingdom. He was subsequently extradited to France, sentenced to life imprisonment with hard labor, and deported to the penal colony of Cayenne, where he died. This bombing, along with other attacks during the Ère des attentats, marked an early shift in terrorist strategy: instead of targeting specific individuals, it focused on symbolic locations—in this case, the Lobau barracks as a stand-in for a precise human target. This shift became a hallmark of modern terrorism but was poorly understood by contemporaries.

The Madeleine bombing was a bomb attack carried out on 15 March 1894 by the anarchist militant Désiré Pauwels at the Madeleine church, facing the French National Assembly in Paris. The attack occurred during the latter half of the Era of Attacks (1892–1894) and aimed to strike a symbol of the Catholic Church and one of the principal churches of the Parisian bourgeoisie. Pauwels arrived at the church but detonated his bomb prematurely at the entrance before he could position it. He died shortly afterward from a gunshot wound to the head, possibly self-inflicted as he would have attempted suicide to avoid capture by police. No other casualties or injuries were reported, though the church sustained damage and required restoration. This bombing, along with other attacks during the Era of Attacks, marked an early shift in terrorist strategy: instead of targeting specific individuals, it focused on symbolic locations—in this case, the Madeleine church as a stand-in for a precise human target. This shift became a hallmark of modern terrorism but was poorly understood by contemporary media, which dismissed the attack as a senseless act without grasping its ideological motivations. The French press reacted with disgust and scorn, ignoring Pauwels' courage or resolve. The incident also highlights the growing role of forensic science in criminal investigations. Pauwels’ body was so severely disfigured and mutilated by the explosion that it became unrecognizable, necessitating identification by forensic experts—who successfully confirmed his identity.

Tsar, also spelled czar, tzar or csar ( ), is a Slavic title derived from the Latin word caesar. It was intended to mean "emperor" in the European medieval sense of the term—a ruler with the same rank as a Roman emperor, holding it by the approval of another emperor or a supreme ecclesiastical official—but was usually considered by Western Europeans to be equivalent to "king".

The Finnish Civil War was fought in 1918 for the leadership and control of recently independent Finland (formerly part of Russia) between White Finland and the Finnish Socialist Workers' Republic (Red Finland). The clashes took place in the context of the national, political, and social turmoil caused by World War I (Eastern Front) in Europe. The belligerents were the paramilitary Red Guards, led by a section of the Social Democratic Party with backup of the Russian bolsheviks, and the paramilitary White Guards of the senate. General C. G. E. Mannerheim led the White Guards with major assistance by both the Finnish Jäger Battalion trained in Germany and from March-April 1918 by the German Imperial Army, along the German goal to control Fennoscandia and Petrograd of Russia. The Reds, composed of industrial and agrarian working class people, controlled the cities and industrial centres of southern Finland. The Whites, composed of land owners and the middle and upper class, controlled the rural central and northern Finland. In the years before the civil war, Finland had experienced rapid population growth, industrialisation, gradually increasing urbanisation and the rise of a comprehensive labour movement. The country's political and governmental systems were in an unstable phase of democratisation and modernisation. The socio-economic condition and education of the population had gradually improved, and national awareness and culture had progressed. World War I led to the collapse of the Russian Empire, causing a power vacuum in Finland, and the subsequent struggle for dominance led to militarisation and an escalating crisis between the left-leaning labour movement and the conservatives. The Reds carried out an unsuccessful general offensive in February 1918, supplied with weapons by Soviet Russia. A counteroffensive by the Whites began in March, reinforced by the German Empire's military detachments in April. The decisive engagements were the Battles of Tampere and Viipuri, won by the Whites, and the Battles of Helsinki and Lahti, won by German troops, leading to overall victory for the Whites and the German forces. Political violence became a part of this warfare with around 12,000 casualties - most of them were Reds. Moreover, about 12,500 Red prisoners died of malnutrition and disease in camps. In total around 38,000 people died in the conflict, where around one million Finns of the total population of three million had been more or less involved with. In the immediate aftermath, Finland passed from the sphere of influence of Soviet Russia to the German power sphere with a plan to establish a German-led Finnish monarchy. The scheme ended with Germany's defeat in World War I, and Finland instead emerged as a sovereign, democratic, constitutional state with proper civil society. The civil war divided the nation for decades. The Finnish society was gradually reunited through social compromises based on a long-term culture of moderate politics, religion and a post-war economic recovery.

The Ukrainian War of Independence, also referred to as the Ukrainian–Soviet War in Ukraine, lasted from March 1917 to November 1921 and was part of the wider Russian Civil War. It saw the establishment and development of an independent Ukrainian republic, most of which was absorbed into the Ukrainian Soviet Socialist Republic between 1919 and 1920. The Ukrainian Soviet Socialist Republic was one of the constituent republics of the Soviet Union between 1922 and 1991. The war was fought between different governmental, political and military forces. Belligerents included Ukrainian nationalists, Ukrainian anarchists, the forces of Germany and Austria-Hungary, the White Russian Volunteer Army, and Second Polish Republic forces. They struggled for control of Ukraine after the February Revolution of 1917. The war ensued soon after the October Revolution, when the Bolshevik leader Vladimir Lenin dispatched the Antonov's expeditionary group to Ukraine and Southern Russia. The war resulted in the absorption of Ukrainian populations into the newly created Soviet Union and the Second Polish Republic. Soviet historical tradition viewed the Bolshevik victory as the liberation of Ukraine from occupation by the armies of Western and Central Europe, including that of Poland. Modern Ukrainian historians consider it a failed war of independence by the Ukrainian People's Republic against the Bolsheviks. The conflict can be viewed within the framework of the Southern Front of the Russian Civil War of 1917–1922, as well as the closing stage of the Eastern Front of World War I.

The American Legion, commonly known as the Legion, is an organization of U.S. veterans headquartered in Indianapolis, Indiana. It comprises state, U.S. territory, and overseas departments, in turn made up of local posts. It was established in March 1919 in Paris, France, by officers and men of the American Expeditionary Forces (AEF). It was subsequently chartered by the 66th U.S. Congress on September 16, 1919. The Legion played the leading role in drafting and passing the Servicemen's Readjustment Act of 1944, commonly known as the "G.I. Bill". In addition to organizing commemorative events, members assist at Department of Veterans Affairs (VA) hospitals and clinics. It is active in issue-oriented U.S. politics. Its primary political activity is lobbying on behalf of veterans and service members, including for benefits such as pensions and the Veterans Health Administration.

Mehmed Talât Pasha (1 September 1874 – 15 March 1921), commonly known as Talaat Pasha or Talat Pasha, was a Turkish activist, revolutionary, politician, and convicted war criminal who served as the de facto leader of the Ottoman Empire from 1913 to 1918. He was chairman of the Union and Progress Party, which operated a one-party dictatorship in the Empire; during World War I he became Grand Vizier (prime minister). He has been called the architect of the Armenian genocide, and was responsible for other ethnic cleansings during his time as Minister of Interior Affairs. Talaat was an early member of the Committee of Union and Progress (CUP), eventually leading its Salonica chapter during the Hamidian era. After the CUP succeeded in restoring the constitution and parliament in the 1908 Young Turk Revolution, he was elected as a deputy from Adrianople to the Chamber of Deputies and later became Minister of the Interior. He played an important role in the downfall of Sultan Abdul Hamid II the next year during the 31 March Incident by organizing a counter government. Multiple crises in the Empire including the 31 March Incident, attacks on Rumelian Muslims in the Balkan Wars, and the power struggle with the Freedom and Accord Party made Talaat and the Unionists disillusioned with multicultural Ottomanism and political pluralism, turning them into hard-line authoritarian Turkish nationalists. In 1913, Talaat and Ismail Enver carried out a coup d'état with Mahmud Şevket Pasha as a reluctant partner. With the latter's assassination, an autocratic triumvirate of CUP Central Committee members lead the Ottoman Empire, consisting of himself, Enver, and Ahmed Cemal (known as the Three Pashas) of whom Talaat was its civilian leader. Talaat and Enver were influential in bringing the Ottoman Empire into the First World War. During World War I, he ordered on 24 April 1915 the arrest and deportation of Armenian intellectuals in Constantinople (now Istanbul), most of them being ultimately murdered, and on 30 May 1915 promulgated the Temporary Law of Deportation; these events initiated the Armenian genocide. He is widely considered the main perpetrator of the genocide, and is thus held responsible for the death of around 1 million Armenians. In a move that established total Unionist control over the Turkish government, Talaat Pasha became Grand Vizier in 1917. He personally negotiated the Treaty of Brest-Litovsk with the Bolsheviks, regaining parts of Eastern Anatolia which were occupied by Russia since 1878, and introduced many social reforms. However breakthroughs by the Allies in the Macedonia and Palestine fronts meant defeat for the Ottomans and the downfall of the CUP, whereupon he resigned. On the night of 2–3 November 1918, Talaat Pasha and other members of the CUP's central committee fled the country. The Ottoman Special Military Tribunal convicted and sentenced him to death in absentia for subverting the constitution, profiteering from the war, and organizing massacres against Greeks and Armenians. Exiled in Berlin, he supported the Turkish Nationalists led by Mustafa Kemal Pasha (Atatürk) in Turkey's War of Independence. He was killed in Berlin in 1921 by Soghomon Tehlirian, a member of the Armenian Revolutionary Federation, as part of Operation Nemesis.

Egypt, officially the Arab Republic of Egypt, is a country spanning the northeast corner of Africa and southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to the north, Palestine and Israel to the northeast, the Red Sea to the east, Sudan and the Sahara to the south, and Libya to the west. The Gulf of Aqaba in the northeast separates Egypt from Jordan and Saudi Arabia. Cairo is the capital, largest city, and leading cultural centre, while Alexandria is the second-largest city and an important hub of industry and tourism. With over 107 million inhabitants, Egypt is the most populous country in the Arab world, third-most populous country in Africa, and 15th-most populated in the world.

The Women's Boat Race is an annual rowing race between Cambridge University Boat Club and Oxford University Women's Boat Club. First rowed in 1927, the race has taken place annually since 1964. Since the 2015 race it has been rowed on the same day and course as the men's Boat Race on the River Thames in London, taking place around Easter, and since 2018 the name "The Boat Race" has been applied to the combined event. The race is rowed in eights and the cox can be of either gender.

The military occupation of Czechoslovakia by Nazi Germany began with the German annexation of the Sudetenland in 1938, continued with the creation of the Protectorate of Bohemia and Moravia, and by the end of 1944 extended to all parts of Czechoslovakia.

Carpatho-Ukraine or Carpathian Ukraine was an autonomous region within the Second Czechoslovak Republic and short-lived state. It was created in December 1938 and renamed from Subcarpathian Rus', whose full administrative and political autonomy had been confirmed by constitutional law of 22 November 1938.

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.

The nationalization of the Iranian oil industry resulted from a movement in the Iranian parliament (Majlis) to seize control of Iran's oil industry, which had been run by private companies, largely controlled by foreign interests. The legislation was passed on 15 March 1951, and was verified by the Majlis on 17 March 1951. The legislation led to the nationalization of the Anglo-Iranian Oil Company (AIOC) and the formation of the National Iranian Oil Company (NIOC). The movement was led by Mohammad Mosaddegh, a member of the Majlis for the National Front and future prime minister of Iran.

Lyndon Baines Johnson, also known as LBJ, was the 36th president of the United States, serving from 1963 to 1969. He served as the 37th vice president under John F. Kennedy from 1961 to 1963, before assuming the presidency upon Kennedy's assassination. A Democrat from Texas, Johnson served in Congress until 1961, where he built a reputation as a talented and persuasive legislator. His presidency saw the passing of landmark civil rights legislation including the Civil Rights Act of 1964 and the Voting Rights Act of 1965, the creation of "Great Society" programs such as Medicare and Medicaid, and a major escalation in U.S. involvement in the Vietnam War.

On 15 March 1974, Sterling Airways Flight 901, a Sud Aviation Caravelle operated by Sterling Airways, experienced a landing gear failure as it was taxiing for take-off. The right main landing gear collapsed, which caused the right wing to contact the runway, rupturing a fuel tank and igniting the spilt fuel. The fire killed 15 passengers and injured 37 passengers and crew. The aircraft had been chartered by tour company Tjæreborg to take tourists around Asia, and was on the way back to Copenhagen when the accident happened. The accident came only two years after the crash of Sterling Airways Flight 296.

Somalia, officially the Federal Republic of Somalia, is the easternmost country in continental Africa. Stretching across the Horn of Africa, it borders Ethiopia to the west, Djibouti to the northwest, Kenya to the southwest, the Gulf of Aden to the north, and the Indian Ocean to the east. Somalia has the longest coastline on Africa's mainland. Somalia has an estimated population over 19 million, of which 2.7 million live in the capital and largest city, Mogadishu. As one of Africa's most ethnically homogeneous countries, around 85% of its residents are ethnic Somalis. The official and national language of the country is Somali, and Arabic is recognised as a second language. The overwhelming majority of the population are Sunni Muslims.

The collapse of Hotel New World was a civil disaster that occurred in Singapore on 15 March 1986. The Hotel New World was a six-story building situated at the junction of Serangoon Road and Owen Road in the Rochor district when it suddenly collapsed, trapping 50 people beneath the rubble. 33 people died and 17 people were rescued.

Mikhail Sergeyevich Gorbachev was a Soviet and Russian politician who was the last leader of the Soviet Union from 1985 until the country's dissolution in 1991. He served as General Secretary of the Communist Party from 1985, and additionally as head of state from 1988. Ideologically, he initially adhered to Marxism–Leninism, but moved towards social democracy by the early 1990s.

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.

At approximately 12 p.m. local time on March 15, 2008, at an ex-military ammunition depot in the village of Gërdec in the Vorë Municipality of Albania, U.S. and Albanian munitions experts were preparing to destroy stockpiles of obsolete ammunition by a series of small, controlled explosions. However, a chain of events led to the entire stockpile detonating simultaneously. Hundreds of houses were demolished within a few kilometres of the depot, and car windows on the Tirana-Durres highway were shattered by the main explosion, which involved more than 400 tonnes of propellant in containers. A large fire caused a series of smaller but powerful explosions that continued until 2 a.m. the following day. The explosions were heard as far away as the Macedonian capital of Skopje, 170 km (110 mi) away.

The Syrian revolution was a series of mass protests and civilian uprisings throughout Syria – with a subsequent violent reaction by the Ba'athist regime – lasting from 2011 to 2024 as part of the greater Arab Spring in the Arab world. The revolution, which demanded the end of the decades-long Assad family rule, began as minor demonstrations during January 2011 and transformed into large nationwide protests in March. The uprising was marked by mass protests against the Ba'athist dictatorship of president Bashar al-Assad meeting police and military violence, massive arrests and a brutal crackdown, resulting in hundreds of thousands of deaths and tens of thousands wounded. 13 years after the start of the revolution, the Assad regime fell in 2024 after a series of rebel offensives.

On 15 March 2019, two consecutive terrorist mass shootings took place in Christchurch, New Zealand. They were committed during Friday prayer, first at the Al Noor Mosque in Riccarton at 1:40 p.m., and shortly afterwards at 1:52 p.m. at the Linwood Islamic Centre. In total, 51 people were killed and 89 others were injured, including 40 by gunfire. The perpetrator was identified as Brenton Tarrant, a 28-year-old Australian man at the time.

From 2019 until 2020, protests were held in Hong Kong in response to the Hong Kong government's introduction of a bill to amend the Fugitive Offenders Ordinance in regard to extradition. It was the largest series of demonstrations in the history of Hong Kong.

Fridays for Future (FFF), also known as the School Strike for Climate, is an international movement of school students who skip Friday classes to participate in demonstrations to demand action from political leaders to prevent climate change and for the fossil fuel industry to transition to renewable energy. Publicity and widespread organising began after Swedish pupil Greta Thunberg staged a protest in August 2018 outside of the Swedish parliament, the Riksdag, holding a sign that read "Skolstrejk för klimatet".

The 2022 Sri Lankan protests, also known as Aragalaya, were a series of mass protests that began in March 2022 against the government of Sri Lanka. The government was heavily criticized for mismanaging the Sri Lankan economy, which led to a subsequent economic crisis involving severe inflation, daily blackouts, and a shortage of fuel, domestic gas, and other essential goods. The protesters' main demand was the resignation of President Gotabaya Rajapaksa and key officials from the Rajapaksa family. Despite the involvement of several opposition parties, most protesters considered themselves to be apolitical, with many expressing discontent with the parliamentary opposition. Protesters chanted slogans such as "Go Home Gota", "Go Home Rajapaksas", and "Aragalayata Jaya Wewa". Most protests were organized by the general public, with youths playing a major part by carrying out protests at Galle Face Green.