April 9 in History

Year 193 (CXCIII) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Sosius and Ericius. The denomination 193 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 foundation of Constantinople in 330 AD marks the conventional start of the Byzantine Empire, which fell to the Ottoman Empire in 1453 AD. Only the emperors who were recognized as legitimate rulers and exercised sovereign authority are included, to the exclusion of junior co-emperors who never attained the status of sole or senior ruler, as well as of the various usurpers or rebels who claimed the imperial title.

The siege of Rome took place on 2 March 537 – 12 March 538 AD and it was the city's first siege during the Gothic War (535–554) between the defending Byzantine Empire's forces under the leadership of General Belisarius against a numerically superior Ostrogothic (Goths) force under King Vitiges. The siege was the first major encounter between the forces of the two opponents, and played a decisive role in the subsequent development of the war. Belisarius prepared the fortification of Rome for the upcoming siege and organized the city's defense with about 5,000 troops, installed artillery on the walls, and recruited citizens to assist in manning the walls. The Goths established fortified camps around Rome and attempted to cut its water supply. They soon launched an assault against Rome on multiple fronts using siege towers, battering rams, and ladders, but the defenders repulsed the Gothic attacks. The failure of the Gothic assault turned the siege into a prolonged struggle of attrition. Gothic forces captured the port of Portus and attempted to further isolate Rome. The food shortages and disease increasingly affected the population, who placed pressure on Belisarius to act. Byzantine reinforcements eventually reached the city, enabling Belisarius to make extensive use of cavalry, including mounted archers, in sorties against the besiegers. After an unsuccessful attempt to defeat the Goths in open battle, Belisarius largely relied on the city's fortifications, cavalry hit-and-run tactics to effectively besiege the besiegers. A temporary armistice gave the Byzantines time to strengthen their defenses and increase pressure against the Goths, who also had food shortages issues. The siege ended in March 538 after Byzantine forces under John the Sanguinary captured Ariminum (modern-day Rimini), a strategic city near the Gothic capital of Ravenna. Vitiges abandoned the siege on 12 March and withdrew north with his army to capture Ariminum.

The Battle of Legnica (Polish: bitwa pod Legnicą), also known as the Battle of Liegnitz (German: Schlacht von Liegnitz) or Battle of Wahlstatt (German: Schlacht bei Wahlstatt), was fought between the Mongol Empire and combined European forces at the village of Legnickie Pole (Wahlstatt), approximately 10 kilometres (6 mi) southeast of the city of Legnica in the Duchy of Silesia on 9 April 1241. A combined force of Poles and Moravians under the command of Duke Henry II the Pious of Silesia, supported by feudal nobility and a few knights from military orders sent by Pope Gregory IX, attempted to halt the Mongol invasion of Poland. The battle took place two days before the Mongol victory over the Hungarians at the much larger Battle of Mohi.

Four major military campaigns were launched by the Mongol Empire, and later the Yuan dynasty, against the kingdom of Đại Việt (modern-day northern Vietnam) ruled by the Trần dynasty and the kingdom of Champa (modern-day central Vietnam) in 1258, 1282–1284, 1285, and 1287–1288. The campaigns are treated by a number of scholars as a success due to the establishment of tributary relations with Đại Việt despite the Mongols suffering major military defeats. In contrast, modern Vietnamese historiography regards the war as a major victory against the foreign invaders. The first invasion began in 1258 under the united Mongol Empire, as it looked for alternative paths to invade the Song dynasty. The Mongol general Uriyangkhadai was successful in capturing the Vietnamese capital Thăng Long (modern-day Hanoi) before turning north in 1259 to invade the Song dynasty in modern-day Guangxi as part of a coordinated Mongol attack with armies attacking in Sichuan under Möngke Khan and other Mongol armies attacking in modern-day Shandong and Henan. The first invasion also established tributary relations between the Vietnamese kingdom, formerly a Song dynasty tributary state, and the Yuan dynasty. In 1283, Kublai Khan and the Yuan dynasty launched a naval invasion of Champa that also resulted in the establishment of tributary relations. Intending to demand greater tribute and direct Yuan oversight of local affairs in Đại Việt and Champa, the Yuan launched another invasion in 1285. The second invasion of Đại Việt failed to accomplish its goals, and the Yuan launched a third invasion in 1287 with the intent of replacing the uncooperative Đại Việt ruler Trần Nhân Tông with the defected Trần prince Trần Ích Tắc. By the end of the second and third invasions, which involved both initial successes and eventual major defeats for the Mongols, both Đại Việt and Champa decided to accept the nominal supremacy of the Yuan dynasty and became tributary states to avoid further conflict.

The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived the fall of the Western Roman Empire in the 5th century AD, it endured until the fall of Constantinople to the Ottoman Empire in 1453. The term 'Byzantine Empire' was coined only after its demise; its citizens used the term 'Roman Empire' and called themselves 'Romans'.

The Old Swiss Confederacy, also known as Switzerland or the Swiss Confederacy, was a loose confederation of independent small states, initially within the Holy Roman Empire. It is the precursor of the modern state of Switzerland.

The Council of Florence was the seventeenth ecumenical council recognized by the Catholic Church, held between 1431 and 1445. It was convened in territories under the Holy Roman Empire. Italy became a venue of a Catholic ecumenical council after a gap of about two centuries. It was convoked in Basel as the Council of Basel by Pope Martin V shortly before his death in February 1431 and took place in the context of the Hussite Wars in Bohemia and the rise of the Ottoman Empire. At stake was the greater conflict between the conciliar movement and the principle of papal supremacy.

The Treaty of Lodi, or Peace of Lodi, was a peace agreement which brought to an end the Wars in Lombardy between the Venetian Republic and the Duchy of Milan, signed in the city of Lodi on 9 April 1454.

The Eighty Years' War or Dutch Revolt (c. 1566/1568–1648) was an armed conflict in the Habsburg Netherlands between disparate groups of rebels and the Spanish government. The causes of the war included the Reformation, centralisation, excessive taxation, and the rights and privileges of the Dutch nobility and cities. After the initial stages, Philip II of Spain, the sovereign of the Netherlands, deployed his armies and regained control over most of the rebel-held territories. However, widespread mutinies in the Spanish army caused a general uprising. Under the leadership of the exiled William the Silent, the Catholic and Protestant-dominated provinces sought to establish religious peace while jointly opposing the king's regime with the Pacification of Ghent, but the general rebellion failed to sustain itself. Despite steady military and diplomatic successes by the Governor of Spanish Netherlands and General for Spain, the Duke of Parma, the Union of Utrecht continued their resistance, proclaiming their independence through the 1581 Act of Abjuration and establishing the Calvinist-dominated Dutch Republic in 1588. In the Ten Years thereafter, the Republic (whose heartland was no longer threatened) made conquests in the north and east and received diplomatic recognition from France and England in 1596. The Dutch colonial empire emerged, which began with Dutch attacks on Portugal's overseas territories. Facing a stalemate, the two sides agreed to a Twelve Years' Truce in 1609; when it expired in 1621, fighting resumed as part of the broader Thirty Years' War. An end was reached in 1648 with the Peace of Münster when Spain retained the Southern Netherlands and recognised the Dutch Republic as an independent country.

Philip III was King of Spain and Portugal during the period known as the Iberian Union, reigning from 1598 until his death in 1621. He was also King of Naples and Sicily, Duke of Milan, and Lord of the Seventeen Provinces. A member of the House of Habsburg, he was born in Madrid to King Philip II of Spain and his fourth wife, Anna of Austria. The family was heavily inbred; Philip II and Anna were uncle and niece, as well as cousins.

René-Robert Cavelier, Sieur de La Salle (, French: [ʁəne ʁɔbɛʁ kavəlje sjœʁ də la sal]; November 22, 1643 – March 19, 1687), was a French explorer and fur trader in North America. He explored the Great Lakes region of the United States and Canada, and the Mississippi River. He is best known for an early 1682 expedition in which he canoed the lower Mississippi River from the mouth of the Illinois River to the Gulf of Mexico; there, on April 9, 1682, he claimed the Mississippi River basin for France after giving it the name La Louisiane, in honor of Saint Louis and Louis XIV. One source states that "he acquired for France the most fertile half of the North American continent". A later, ill-fated expedition in 1684 to the Gulf coast of Mexico (today the U.S. state of Texas) gave the United States a putative claim to Texas in the purchase of the Louisiana Territory from France in 1803; La Salle was assassinated during that expedition. Although Jolliet and Marquette preceded him on the upper Mississippi in their journey of 1673–74, La Salle extended exploration – and France's claims – all the way to the river's mouth, although the existing historical evidence does not indicate that La Salle ever reached the Ohio/Allegheny Valley.

The Treaty of Paris, signed by representatives of King George III of Great Britain and representatives of the United States on September 3, 1783, officially ended the War of American Independence and recognized the Thirteen Colonies, which had been part of colonial British America, to be free, sovereign, and independent unified states. It forms one treaty out of many that are collectively named the "Peace of Paris".

The phonautograph is the earliest known device for recording sound. Previously, tracings had been obtained of the sound-producing vibratory motions of tuning forks and other objects by physical contact with them, but not of actual sound waves as they propagated through air or other mediums. Invented by Frenchman Édouard-Léon Scott de Martinville, it was patented on March 25, 1857. It transcribed sound waves as undulations or other deviations in a line traced on smoke-blackened paper or glass. Scott believed that future technology would allow the traces to be deciphered as a kind of "natural stenography". Intended as a laboratory instrument for the study of acoustics, it was used to visually study and measure the amplitude envelopes and waveforms of speech and other sounds or to determine the frequency of a given musical pitch by comparison with a simultaneously recorded reference frequency.

The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States between the Union ("the North") and the Confederacy ("the South"), which was formed in 1861 by states that had seceded from the Union to preserve slavery in the United States. The South saw slavery as threatened because of the election of Abraham Lincoln and the growing abolitionist movement in the North. The war ended with Union victory, the dissolution of the Confederacy and the abolition of slavery, freeing four million African Americans. Decades of controversy over slavery came to a head when Abraham Lincoln, a Republican who opposed slavery's expansion, won the 1860 presidential election. Seven slave states in the South responded to Lincoln's victory by seceding from the United States and forming the Confederate States of America. The Confederacy seized US forts and other federal assets in the South. The war began on April 12, 1861, when the Confederacy bombarded Fort Sumter in South Carolina. A wave of enthusiasm for war swept over the North and South, as military recruitment soared. Four more Southern states seceded after the war began and, led by its president, Jefferson Davis, the Confederacy comprised eleven states, containing a third of the US population. Four years of intense combat, mostly in the South, ensued. During 1861–1862 in the western theater, the Union made permanent gains, though in the eastern theater the conflict was inconclusive. The abolition of slavery became a Union war goal on January 1, 1863, when Lincoln issued the Emancipation Proclamation, which declared all slaves in rebel states to be free, applying to more than 3.5 million of the 4 million enslaved people in the country. To the west, the Union first destroyed the Confederacy's river navy by the summer of 1862, then much of its western armies, and seized New Orleans. The successful 1863 Union siege of Vicksburg split the Confederacy in two at the Mississippi River, while Confederate general Robert E. Lee's incursion north failed at the Battle of Gettysburg. General Ulysses S. Grant's western successes led Lincoln to promote him to command of all Union armies in 1864. Inflicting an ever-tightening naval blockade of Confederate ports, the Union marshaled resources and manpower to attack the Confederacy from all directions. This led to the fall of Atlanta in 1864 to Union general William Tecumseh Sherman, followed by his March to the Sea, which culminated in his taking Savannah. The last significant battles raged around the ten-month siege of Petersburg, gateway to the Confederate capital of Richmond. The Confederates abandoned Richmond, and on April 9, 1865, Lee surrendered to Grant following the Battle of Appomattox Court House, setting in motion the end of the war. Lincoln lived to see this victory but was shot by an assassin on April 14, dying the next day. By the end of the war, much of the South's infrastructure had been destroyed. The Confederacy collapsed, the Thirteenth Amendment abolished slavery, and four million enslaved black people were freed. The war-torn nation then entered the Reconstruction era in an attempt to rebuild the country, bring the former Confederate states back into the United States, and grant civil rights to freed slaves. The war is one of the most extensively studied and written about episodes in the history of the United States. It remains the subject of cultural and historiographical debate. Of continuing interest is the myth of the Lost Cause of the Confederacy. The war was among the first to use industrial warfare. Railroads, the electrical telegraph, steamships, the ironclad warship, and mass-produced weapons were widely used. The war left an estimated 700,000 soldiers dead, along with an undetermined number of civilian deaths, making it the deadliest in American history. The technology and brutality of the Civil War foreshadowed the coming world wars.

The United States Congress is the legislative branch of the federal government of the United States. It is a bicameral legislature, including a lower body, the U.S. House of Representatives, and an upper body, the U.S. Senate. They both meet in the United States Capitol in Washington, D.C.

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 resulted in an estimated 15 to 22 million deaths, including those in war crimes and genocides. The war also helped spread the Spanish flu pandemic. The conflict saw important developments in weaponry, including the first large-scale use of machine guns, artillery, aircraft, chemical weapons, and tanks.

The Battle of the Lys, also known as the Fourth Battle of Ypres, was fought from 7 to 29 April 1918 and was part of the German spring offensive in Flanders during the First World War. It was originally planned by General Erich Ludendorff as Operation George but was reduced to Operation Georgette, with the objective of capturing Ypres, forcing the British forces back to the Channel ports and out of the war. In planning, execution and effects, Georgette was similar to (although smaller than) Operation Michael, earlier in the Spring Offensive.

Kamikaze (神風号, Kamikaze-gō) was a Mitsubishi Ki-15 Karigane airplane, (registration J-BAAI) sponsored by the newspaper Asahi Shimbun. It became famous on April 9, 1937, as the first Japanese-built aircraft to fly from Japan to Europe. The flight from Tokyo to London took 51 hours, 17 minutes and 23 seconds and was piloted by Masaaki Iinuma (1912–1941), with Kenji Tsukagoshi (1900–1943) serving as navigator.

Marian Anderson, born Marian Elina-Blanche Anderson (February 27, 1897 – April 8, 1993) was an American contralto. She performed a wide range of music, from opera to spirituals. Anderson performed with renowned orchestras in major concert and recital venues throughout the United States and Europe between 1925 and 1965. Anderson was an important figure in the struggle for Black American artists to overcome racial prejudice in the United States during the mid-twentieth century. In 1939, during the period of racial segregation, the Daughters of the American Revolution (DAR) refused to allow Anderson to sing to an integrated audience in Constitution Hall in Washington, D.C. The incident placed Anderson in the spotlight of the international community on a level unusual for a classical musician. With the aid of First Lady Eleanor Roosevelt and her husband, President Franklin D. Roosevelt, Anderson performed a critically acclaimed open-air concert on Easter Sunday, April 9, 1939, on the Lincoln Memorial steps in the capital. The event was featured in the documentary Marian Anderson: The Lincoln Memorial Concert. She sang before an integrated crowd of more than 75,000 people and a radio audience in the millions. On January 7, 1955, Anderson became the first Black American singer to perform at the Metropolitan Opera. In addition, she worked as a delegate to the United Nations Human Rights Committee and as a Goodwill Ambassador for the United States Department of State, giving concerts all over the world. She participated in the civil rights movement in the 1960s, singing at the March on Washington for Jobs and Freedom in 1963. The recipient of numerous awards and honors, Anderson was awarded the first Presidential Medal of Freedom in 1963, the Congressional Gold Medal in 1977, the Kennedy Center Honors in 1978, the National Medal of Arts in 1986, and a Grammy Lifetime Achievement Award in 1991.

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.

Vidkun Abraham Lauritz Jonssøn Quisling (; Norwegian: [ˈʋɪ̂dkʉn ˈkʋɪ̂slɪŋ] ; 18 July 1887 – 24 October 1945) was a Norwegian military officer, politician and Nazi collaborator who headed the puppet government of Norway during the country's occupation by Nazi Germany during World War II. He first came to international prominence as a close collaborator of the explorer Fridtjof Nansen, and through organising humanitarian relief during the Russian famine of 1921 in Povolzhye. He was posted as a Norwegian diplomat to the Soviet Union, and for some time also managed British diplomatic affairs there. He returned to Norway in 1929 and served as minister of defence in the agrarian governments of Peder Kolstad (1931–1932) and Jens Hundseid (1932–1933). In 1933, Quisling founded the fascist Nasjonal Samling (National Gathering). Although he gained some popularity after his attacks on the political left, his party failed to win any seats in the Storting, and by 1940, it was still little more than peripheral. On 9 April 1940, with the German invasion of Norway in progress, he attempted to seize power in the world's first radio-broadcast coup d'état but failed since the Germans sought to convince the recognised Norwegian government to legitimize the German occupation. On 1 February 1942, he formed a second government, approved by the Germans, and served as minister president. He headed the Norwegian state administration jointly with the German civilian administrator, Josef Terboven. His pro-Nazi puppet government, known as the Quisling regime, was dominated by ministers from Nasjonal Samling. The collaborationist government participated in Germany's war efforts and deported Jews out of the country to concentration camps in occupied Poland, where most were killed. Quisling was put on trial during the legal purge in Norway after World War II. He was found guilty of charges including embezzlement, murder and high treason against the Norwegian state, and was sentenced to death, a sentence which subsequently garnered some criticism due to its questionable legality; besides by the occupation authority, with Quisling's support (including retroactive verdicts), no death sentence had been executed since 1876, and capital punishment had been abolished upon independence in 1905. Quisling was executed by firing squad at Akershus Fortress, Oslo, on 24 October 1945. Since his death, he has come to be seen as one of European history's foremost traitors due to his collaboration with Nazi Germany. The term quisling has become a synonym for "collaborator" or "traitor" in several North European languages.

The Battle of Bataan (Filipino: Labanan sa Bataan; 7 January – 9 April 1942) was fought by the United States and the Philippine Commonwealth against the Empire of Japan during World War II. The battle represented the most intense phase of the Japanese invasion of the Philippines during World War II. In January 1942, forces of the Imperial Japanese Army and Navy invaded Luzon along with several islands in the Philippine Archipelago after the bombing of the American naval base at Pearl Harbor. The commander in chief of the U.S. and Filipino forces in the islands, General Douglas MacArthur, consolidated all of his Luzon-based units on the Bataan Peninsula to fight against the Japanese army. By this time, the Japanese controlled nearly all of Southeast Asia. The Bataan Peninsula and the island of Corregidor were the only remaining Allied strongholds in the region. Despite their lack of supplies, American and Filipino forces managed to fight the Japanese for three months, engaging them initially in a fighting retreat southward. As the combined American and Filipino forces made a last stand, the delay cost the Japanese valuable time and prevented immediate victory across the Pacific. The American surrender at Bataan to the Japanese, with 76,000 soldiers surrendering in the Philippines altogether, was the largest in American and Filipino military histories and was the largest United States surrender since the American Civil War's Battle of Harpers Ferry. Soon afterwards, U.S. and Filipino prisoners of war were forced into the roughly 65-mile (105 km) Bataan Death March.

The Indian Ocean raid (Operation C, the Third Mobile Operation in the Indian Ocean and the Battle of Ceylon in Japanese) was a sortie of the Imperial Japanese Navy (IJN) from 31 March to 10 April 1942. Japanese aircraft carriers (Admiral Chūichi Nagumo) struck Allied shipping, naval bases and airfields around British Ceylon but failed to find most of the Eastern Fleet. The British were forewarned by signals intelligence and the fleet sailed before the raid; its attempt to surprise the Japanese was frustrated by poor tactical intelligence. Concurrent with Operation C, the IJN dispatched Malaya Force (Vice Admiral Jisaburō Ozawa) consisting of the aircraft carrier Ryūjō, six cruisers, a light cruiser and four destroyers, to raid the northern Bay of Bengal. In three days, Malaya Force aircraft and ships sank twenty merchant ships and damaged three, a total of over 130,000 GRT. Following Operation C, the British expected a Japanese offensive in the Indian Ocean. The main base of the Eastern Fleet was moved to East Africa and Ceylon was reinforced. Somerville kept his fast carrier division, Force A, "in Indian waters, to be ready to deal with any attempt by the enemy to command those waters with light forces only". The Japanese had no plans to follow up their success and within the year, defeats in the Pacific made it impossible to do so.

Dietrich Bonhoeffer (4 February 1906 – 9 April 1945) was a German Lutheran pastor, neo-orthodox theologian and anti-Nazi dissident who was a key founding member of the Confessing Church. His writings on Christianity's role in the secular world have become widely influential; his 1937 book The Cost of Discipleship is described as a modern classic. Apart from his theological writings, Bonhoeffer was known for his staunch resistance to the Nazi dictatorship, including vocal opposition to Nazi euthanasia program and genocidal persecution of Jews. He was arrested in April 1943 by the Gestapo and imprisoned at Tegel Prison for a year and a half. Later, he was transferred to Flossenbürg concentration camp. Though many believe Bonhoeffer was accused of being associated with a plot to assassinate Hitler, the actual arrest and court documents show that he was arrested for his involvement in "Operation 7" – which succeeded in saving the lives of first 7 then 14 Jews. He was hanged on 9 April 1945 during the collapse of the Nazi regime.

Admiral Scheer was a Deutschland-class heavy cruiser which served with the Kriegsmarine (Navy) of Nazi Germany during World War II. The vessel was named after Admiral Reinhard Scheer, German commander in the Battle of Jutland. She was laid down at the Reichsmarinewerft shipyard in Wilhelmshaven in June 1931 and completed by November 1934. Originally classified as an armored ship by the Reichsmarine, in February 1940 the Germans reclassified the remaining two ships of this class as heavy cruisers.

The Battle of Königsberg, also known as the Königsberg offensive, was one of the last operations of the East Prussian offensive during World War II. In four days of urban warfare, Soviet forces of the 1st Baltic Front and the 3rd Belorussian Front captured the city of Königsberg, present day Kaliningrad, Russia. The siege started in late January 1945 when the Soviets initially surrounded the city. Heavy fighting took place for control of overland connection between Königsberg and the port of Pillau, but by March 1945 Königsberg was hundreds of kilometres behind the main front line in the eastern front. The battle ended when the German garrison surrendered to the Soviets on 9 April after a three-day assault made their position untenable.

The United States Atomic Energy Commission (AEC) was an agency of the United States government established after World War II by the U.S. Congress to foster and control the peacetime development of atomic science and technology. President Harry S. Truman signed the McMahon/Atomic Energy Act on August 1, 1946, transferring the control of atomic energy from military to civilian hands, effective on January 1, 1947. This shift gave the members of the AEC complete control of the plants, laboratories, equipment, and personnel assembled during the war to produce the atomic bomb.

Tel Aviv, officially Tel Aviv-Yafo, and also known as Tel Aviv-Jaffa, is the most populous city in the Gush Dan metropolitan area of Israel. Located on the Israeli Mediterranean coastline and with a population of 494,900, it is the economic and technological center of the country and a global high-tech hub. If East Jerusalem is considered part of Israel, Tel Aviv is the country's second-most-populous city, after Jerusalem; if not, Tel Aviv is the most populous city, ahead of West Jerusalem.

From April 9–11, 1947, a significant tornado outbreak produced catastrophic effects over portions of the southern Great Plains, in the contiguous United States. The outbreak generated at least 12, and possibly 17 or more, tornadoes, many of which were significant. On Wednesday, April 9, a series of related tornadoes spawned by a single supercell, dubbed the Glazier–Higgins–Woodward tornadoes, swept through the U.S. states of Texas, Oklahoma, and Kansas. Most of the damage and nearly all of the deaths are still blamed on one large tornado, known as the Glazier–Higgins–Woodward tornado, that traveled 98 mi (158 km) from Texas to Oklahoma, beginning over the South Plains. This event, up to nearly 2 mi (3.2 km) in width, was often compared to the Tri-State tornado, because it was originally thought to have left a 198-to-221-mile-long path, was similarly large and intense for much of its path, and was also retroactively rated F5 on the modern-day Fujita scale, but it is now believed to have been part of a 125-to-170-mile-long family of nine or 10 tornadoes.

The Journey of Reconciliation, also called "First Freedom Ride", was a form of nonviolent direct action to challenge state segregation laws on interstate buses in the Southern United States. Bayard Rustin and 18 other men and women were the early organizers of the two-week journey that began on April 9, 1947. The participants started their journey in Washington, D.C., traveled as far south as North Carolina, before returning to Washington, D.C.

United Nations Security Council Resolution 22 was adopted on 9 April 1947. The Council recommended that Albania and the United Kingdom take their dispute over the Corfu Channel incident to the International Court of Justice.

Jorge Eliécer Gaitán Ayala was a Colombian politician and statesman who was the leader of the Liberal Party. A nationalist, he served as the mayor of Bogotá from 1936–37, the national Education Minister from 1940–41, and the Labor Minister from 1943–44.

The Irgun, officially the National Military Organization in the Land of Israel, often abbreviated as Etzel (אצ״ל) or IZL, was a Zionist paramilitary organization that operated in Mandatory Palestine between 1931 and 1948. It was an offshoot of the older and larger Jewish paramilitary organization Haganah.

The crash of Japan Air Lines Flight 301 was an accident involving a Martin 2-0-2 of the Japanese airline Japan Air Lines on Mount Mihara, Izu Ōshima, Japan on 9 April 1952, killing all 37 people on board.

The Suez Canal is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez and dividing Africa and Asia. The 193.3-kilometre-long (120.1-mile) canal is a key trade route between Europe and Asia.

Project Mercury was the first human spaceflight program of the United States, running from 1958 through 1963. An early highlight of the Space Race, its goal was to put a man into Earth orbit and return him safely, ideally before the Soviet Union. Taken over from the US Air Force by the newly created civilian space agency NASA, it conducted 20 uncrewed developmental flights, and six successful flights by astronauts. The program, which took its name from Roman mythology, cost $2.83 billion. The astronauts were collectively known as the "Mercury Seven", and each spacecraft was given a name ending with a "7" by its pilot.

Hendrik Frensch Verwoerd, also known as H. F. Verwoerd, was a Dutch-born South African politician, academic, and newspaper editor who served as Prime Minister of South Africa from 1958 until his assassination in 1966.

The Boeing 737 is an American narrow-body aircraft produced by Boeing at its factories in Washington state. Developed to supplement the Boeing 727 on short and thin routes, the twinjet retained the 707 fuselage width and six abreast seating but with two underwing Pratt & Whitney JT8D low-bypass turbofan engines. Envisioned in 1964, the initial 737-100 made its first flight in April 1967 and entered service in February 1968 with Lufthansa. The lengthened 737-200 entered service in April 1968, and evolved through four generations, offering several variants for 85 to 215 passengers.

Concorde is a retired Anglo-French supersonic airliner jointly developed and manufactured by Sud Aviation and the British Aircraft Corporation (BAC). Studies began in 1954 and a UK–France treaty followed in 1962, as the programme cost was estimated at £70 million . Construction of six prototypes began in February 1965, with the first flight from Toulouse on 2 March 1969. The market forecast was 350 aircraft, with manufacturers receiving up to 100 options from major airlines. On 9 October 1975, it received its French certificate of airworthiness, and was certified by the UK CAA on 5 December.

Iraq, officially the Republic of Iraq, is a country in West Asia. Located within the Middle East, it is bordered by Saudi Arabia to the south, Turkey to the north, Iran to the east, the Persian Gulf and Kuwait to the southeast, Jordan to the southwest, and Syria to the west. The country covers an area of 438,317 square kilometres (169,235 sq mi) and has a population of over 46 million, making it the 58th largest country by area and the 31st most populous in the world. Baghdad, home to over 8 million people, is the capital city and the largest in the country.

USS George Washington (SSBN-598) was the United States's first operational ballistic missile submarine. She was the lead ship of her class of nuclear ballistic missile submarines, was the third United States Navy ship of the name, in honor of Founding Father George Washington (1732–1799), the first president of the United States, and was the first of that name to be purpose-built as a warship.

Massacre of Tbilisi refers to the events in Tbilisi, Georgian Soviet Socialist Republic, on April 9, 1989, when an anti-Soviet, pro-independence and nationalist demonstration was crushed by the Soviet Army, resulting in 21 deaths and hundreds of injuries. April 9 is now remembered as National Unity Day, an annual public holiday.

The Irish Republican Army (IRA) is a name used by various militant organisations in Ireland throughout the 20th and 21st centuries. Organisations by this name have been dominantly Catholic and dedicated to the belief that all of Ireland should be an independent republic free from British colonial rule.

The Embraer EMB 120 Brasilia is a twin-turboprop 30-passenger commuter airliner designed and manufactured by the Brazilian aircraft manufacturer Embraer.

Georgia is a country in the Caucasus region on the east coast of the Black Sea. It is located at the intersection of Eastern Europe and West Asia and is generally regarded as part of Europe. It is bordered to the north and northeast by Russia; to the west by the Black Sea, to the south by Turkey and Armenia, and to the southeast by Azerbaijan. It has a population of 3.9 million, of which over a third live in Tbilisi, the capital and largest city. Georgians, who are native to the region and constitute the majority of the population, are ethno-linguistically distinct from their neighboring nations and primarily speak Georgian, a Kartvelian language that has no relation to any other language family in the world.

The Space Shuttle program was the fourth human spaceflight program carried out by the U.S. National Aeronautics and Space Administration (NASA), which accomplished routine transportation for Earth-to-orbit crew and cargo from 1981 to 2011. Its official program name was carried over from the 1969 plan for the Space Transportation System (STS) of reusable spacecraft. Only the shuttle and supporting rockets were funded for development; a proposed nuclear lunar shuttle in the plan was canceled in 1972. It flew 135 missions and carried 355 astronauts from 16 countries, many on multiple trips.

The Iraq War, also referred to as the Second Gulf War, was a protracted armed conflict in Iraq from 2003 to 2011. It began with the invasion by a United States–led coalition, which resulted in the overthrow of the Ba'athist government of Saddam Hussein. During the US occupation of Iraq, the conflict persisted as an insurgency that arose against coalition forces and the newly established Iraqi government. US forces were officially withdrawn in 2011. In 2014, the US became re-engaged in Iraq, leading a new coalition under Combined Joint Task Force – Operation Inherent Resolve, as the conflict evolved into the ongoing Islamic State insurgency.

Tbilisi is the capital and largest city of Georgia, located on the banks of the Kura River. With more than 1.3 million inhabitants, it contains almost one third of the country's population. Tbilisi was founded in the 5th century CE by Vakhtang I of Iberia and has since served as the capital of various Georgian kingdoms and republics. Between 1801 and 1917, then part of the Russian Empire, it was the seat of the Caucasus Viceroyalty, governing both the northern and southern sides of the Caucasus.

On 9 April 2011, six people were killed by a gunman who entered the Ridderhof mall in Alphen aan den Rijn, Netherlands, a town approximately 33 kilometres (21 mi) south-west of Amsterdam. Using a rifle, 24-year-old Tristan van der Vlis shot several people and then killed himself, reportedly with a different firearm. There were seven deaths, including the killer, and 17 wounded, making it the deadliest attack in the Netherlands since the 2009 attack on the Dutch royal family and the deadliest mass shooting by a lone gunman in Dutch history.

The 2013 Bushehr earthquake occurred with a moment magnitude of 6.3 on April 9 in Iran. The shock's epicenter was in the province of Bushehr, near the city of Khvormuj and the towns of Kaki and Shonbeh. At least 37 people were killed, mostly from the town of Shonbeh and villages of Shonbeh-Tasuj district, and an estimated 850 people were injured.

Soyuz MS-16 was a Soyuz spaceflight launched on 9 April 2020, which transported three members of the Expedition 62/63 crew to the International Space Station.

Tatmadaw, officially the Defence Services, is the combined military of Myanmar, comprising the three main branches of Army, Navy and Air Force. The 2008 Constitution requires all the armed forces of Myanmar to be under the command of the Defence Services. Auxiliary services include the Myanmar Police Force, the Border Guard Forces, the Myanmar Coast Guard, and the People's Militia Units. From 1960s to 1990s, the full official name was the Pyithu Tatmadaw or People's Defence Services. The neutral term for military without the royal connotation is Sit-Tat, and the general term for armed forces is Letnetkai-Tat.

Soyuz MS-18 was a Soyuz spaceflight that was launched on 9 April 2021 at 07:42:41 UTC. It transported three members of the Expedition 64 crew to the International Space Station (ISS). Soyuz MS-18 was the 146th crewed flight of a Soyuz spacecraft. The launching crew consisted of a Russian commander, a Russian flight engineer, and an American flight engineer of NASA. The spacecraft returned to Earth on 17 October 2021 following 191 days in space. The flight served as the landing vehicle for the Russian film director Klim Shipenko and actress Yulia Peresild who launched to the ISS aboard Soyuz MS-19 and spent twelve days in space in order to film a movie, Vyzov.