January 27 in History

Pope Innocent I (Latin: Innocentius I) was the bishop of Rome from 401 to his death on 12 March 417. From the beginning of his papacy, he was seen as the general arbitrator of ecclesiastical disputes in both the East and the West. He confirmed the prerogatives of the Archbishop of Thessalonica, and issued a decretal on disciplinary matters referred to him by the Bishop of Rouen. He defended the exiled John Chrysostom and consulted with the bishops of Africa concerning the Pelagian controversy, confirming the decisions of the African synods. The Catholic priest-scholar Johann Peter Kirsch, 1500 years later, described Innocent as a very energetic and highly gifted individual "...who fulfilled admirably the duties of his office".

The Nika riots (Greek: Στάσις τοῦ Νίκα, romanized: Stásis toû Níka), Nika revolt or Nika sedition took place against Byzantine emperor Justinian I in Constantinople over the course of a week in 532 AD. They are often regarded as the most violent riots in the city's history, with nearly half of Constantinople being burned or destroyed and tens of thousands of people killed.

Stephen Lekapenos or Lecapenus (Ancient Greek: Στέφανος Λακαπηνός or Λεκαπηνός, romanized: Stéphanos Lakapēnos or Lekapēnos; died 18 April 963) was the second son of the Byzantine emperor Romanos I Lekapenos (r. 920–944), and co-emperor from 924 to 945. With his younger brother Constantine, he deposed Romanos I in December 944, but they were overthrown and exiled a few weeks later by their brother in law, the legitimate emperor Constantine VII (r. 913–959). Stephen lived out his life in exile on the island of Lesbos, where he died on Easter 963.

Henry VI (German: Heinrich VI.; November 1165 – 28 September 1197), a member of the Hohenstaufen dynasty, was King of Germany (King of the Romans) from 1169 and Holy Roman Emperor from 1191 until his death. From 1194, he was also King of Sicily as the husband and co-ruler of Queen Constance I. Henry was the second son of Emperor Frederick Barbarossa and Beatrice I, Countess of Burgundy. Well educated in the Latin language, as well as Roman and canon law, he was also a patron of poets and a skilled poet himself. In 1186, he married Constance of Sicily. Henry, stuck in the Hohenstaufen conflict with the House of Welf until 1194, had to enforce the inheritance claims by his wife against her nephew Count Tancred of Lecce. His attempt to conquer the Kingdom of Sicily failed at the siege of Naples in 1191 due to an epidemic, with Empress Constance captured. Based on an enormous ransom for the release and submission of King Richard I of England, he conquered Sicily in 1194; however, the intended unification with the Holy Roman Empire ultimately failed due to the opposition of the Papacy. In Sicily, Henry had a reputation for ruthless suppression of political opponents. To this day, he is sometimes given the epithet "the Cruel" (il crudele) by Italian historiographers. Henry threatened to invade the Byzantine Empire after 1194 and succeeded in extracting a ransom, the Alamanikon, from Emperor Alexios III Angelos in return for cancelling the invasion. He made the Kingdom of Cyprus and the Armenian Kingdom of Cilicia formal subjects of the empire and compelled Tunis and Tripolitania to pay tribute to him. Between 1195 and 1196, he attempted to turn the Holy Roman Empire from an elective to a hereditary monarchy, the so-called Erbreichsplan, but met strong resistance from the prince-electors. Henry pledged to go on crusade in 1195 and began preparations. A revolt in Sicily was crushed in 1197. The Crusaders set sail for the Holy Land that same year, but Henry died of malaria at Messina before he could join them. His death plunged the Empire into the chaos of the German throne dispute for the next 17 years.

Dante Alighieri, widely known mononymously as Dante, was an Italian poet, writer, and philosopher. His Divine Comedy, originally called Comedìa and later christened Divina by Giovanni Boccaccio, is widely considered one of the most important poems of the Middle Ages and the greatest literary work in the Italian language.

Pope Clement VI, born Pierre Roger, was head of the Catholic Church from 7 May 1342 to his death, in December 1352. He was the fourth Avignon pope. Clement reigned during the first visitation of the Black Death (1348–1350), during which he granted remission of sins to all who died of the plague.

The Gunpowder Plot of 1605, in earlier centuries often called the Gunpowder Treason Plot or the Jesuit Treason, was an unsuccessful attempted regicide against King James VI of Scotland and I of England by a group of English Catholics, led by Robert Catesby.

Mustafa II (; Ottoman Turkish: مصطفى ثانى Muṣṭafā-yi sānī; 6 February 1664 – 29 December 1703) was the ruling sultan of the Ottoman Empire from 1695 to 1703.

Johann Sebastian Bach 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 Huilliche, Huiliche or Huilliche-Mapuche are the southern part of the Mapuche macroethnic group in Chile and Argentina. Located in the Zona Sur, they inhabit both Futahuillimapu and, as the Cunco or Veliche subgroup, the northern half of Chiloé Island. The Huilliche are the principal Indigenous people of those regions. According to Ricardo E. Latcham the term Huilliche started to be used in Spanish after the second founding of Valdivia in 1645, adopting the usage of the Mapuches of Araucanía for the southern Mapuche tribes. Huilliche means 'southerners' A genetic study showed significant affinities between Huilliches and Indigenous peoples east of the Andes, which suggests but does not prove a partial origin in present-day Argentina.

The American Revolutionary War, also known as the Revolutionary War or American War of Independence or simply the American Revolution, was the armed conflict that comprised the final eight years of the broader American Revolution, in which American Patriot forces organized as the Continental Army and, commanded by George Washington, defeated the British Army. The conflict was fought in North America, the Caribbean, and the Atlantic Ocean. The war's outcome seemed uncertain for most of the war, but Washington and the Continental Army's decisive victory in the Siege of Yorktown in 1781 led King George III and the Kingdom of Great Britain to negotiate an end to the war. In 1783, in the Treaty of Paris, the British monarchy acknowledged the independence of the Thirteen Colonies, leading to the establishment of the United States as an independent and sovereign nation.

The University of Georgia (UGA or Georgia) is a public land-grant, sea-grant, and space-grant research university with its main campus in Athens, Georgia, United States. Chartered in 1785, it is the first state-chartered public university in the United States. It is the flagship university of the University System of Georgia. In addition to the main campuses in Athens with their approximately 470 buildings, the university has two smaller campuses located in Tifton and Griffin. The university has two satellite campuses located in Atlanta and Lawrenceville, and residential and educational centers in Washington, D.C., at Trinity College of Oxford University, and in Cortona, Italy. The total acreage of the university in 30 Georgia counties is 41,539 acres (168.10 km2). The university is classified among "R1: Doctoral Universities – Very High research activity and doctorate production", and is considered to have "Very High" undergraduate admissions standards with "Higher Earnings". The University of Georgia's intercollegiate sports teams, commonly known by their Georgia Bulldogs moniker, compete in National Collegiate Athletic Association (NCAA) Division I as part of the Southeastern Conference (SEC). The university has had more alumni as Rhodes Scholars since 1990 than nearly all other public universities in the country. Alumni also include a United States poet laureate, Emmy Award winners, Grammy Award winners, and multiple Super Bowl champions.

The Russian Empire was an empire that extended across northern Eurasia from 1721 until the proclamation of the Russian Republic in 1917, forming the final era of Tsarist Russia and the wider Russian monarchy. At its height in the late 19th century, it covered about 22,800,000 km2 (8,800,000 sq mi), roughly one-sixth of the world's landmass, making it the third-largest empire in history, behind only the British and Mongol empires. The 1897 Russian census found a population of 126 million with considerable ethnic, linguistic, religious, and socioeconomic diversity.

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.

The Boshin War (戊辰戦争, Boshin Sensō), sometimes known as the Japanese Revolution or Japanese Civil War, was a civil war in Japan fought from 1868 to 1869 between forces of the ruling Tokugawa shogunate and a coalition seeking to seize political power in the name of the Imperial Court. The war stemmed from dissatisfaction among many nobles and young samurai with the shogunate's handling of foreigners following the opening of Japan during the prior decade. Increasing Western influence in the economy led to a decline similar to that of other Asian countries at the time. An alliance of western samurai, particularly the domains of Chōshū, Satsuma, and Tosa, and court officials secured control of the Imperial Court and influenced the young Emperor Meiji. Tokugawa Yoshinobu, the sitting shōgun, realizing the futility of his situation, abdicated and handed over political power to the emperor. Yoshinobu had hoped that by doing this the House of Tokugawa could be preserved and participate in the future government. However, military movements by imperial forces, partisan violence in Edo, and an imperial decree promoted by Satsuma and Chōshū abolishing the House of Tokugawa led Yoshinobu to launch a military campaign to seize the emperor's court in Kyoto. The military tide rapidly turned in favour of the smaller but relatively modernized Imperial faction, and, after a series of battles culminating in the surrender of Edo, Yoshinobu personally surrendered. Those loyal to the Tokugawa shōgun retreated to northern Honshū and later to Hokkaido, where they founded the Republic of Ezo. The defeat at the Battle of Hakodate broke this last holdout and left the Emperor as the de facto supreme ruler throughout the whole of Japan, completing the military phase of the Meiji Restoration. Around 69,000 men were mobilized during the conflict, and of these about 8,200 were killed. In the end, the victorious Imperial faction abandoned its objective of expelling foreigners from Japan and instead adopted a policy of continued modernization with an eye to the eventual renegotiation of the unequal treaties with the Western powers. Due to the persistence of Saigō Takamori, a prominent leader of the Imperial faction, the Tokugawa loyalists were shown clemency, and many former shogunate leaders and samurai were later given positions of responsibility under the new government. When the Boshin War began, Japan was already modernizing, following the same course of advancement as that of the industrialized Western nations. Since Western nations, especially the United Kingdom and France, were deeply involved in the country's politics, the installation of Imperial power added more turbulence to the conflict. Over time, the war was romanticized as a "bloodless revolution", as the number of casualties was small relative to the size of Japan's population. However, conflicts soon emerged between the western samurai and the modernists in the Imperial faction, which led to the bloodier Satsuma Rebellion nine years later.

The Ezo Island Government (蝦夷島政府, Ezogashima Seifu), also known as the Republic of Ezo (蝦夷共和國, Ezo Kyōwakoku), was a short-lived separatist state established in 1869 on the island of Ezo, now Hokkaido, by a part of the former military of the Tokugawa shogunate at the end of the Bakumatsu period in Japan. It was the first government to attempt to institute democracy in Japan, though voting was limited to the samurai caste. The Republic of Ezo existed for five months before being annexed by the newly established Empire of Japan.

Modest Petrovich Mussorgsky was a Russian composer, one of the group known as "The Five." He was an innovator of Russian music in the Romantic period and strove to achieve a uniquely Russian musical identity, often in deliberate defiance of the established conventions of Western music.

Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman known for his work on the incandescent light bulb, the phonograph, electric power distribution and early motion pictures. The merger of the Edison General Electric Company and the competitor Thomson-Houston Electric Company resulted in the formation of General Electric. Edison registered 1,093 patents in the United States. Edison was born in Milan, Ohio, but grew up in Michigan with little formal schooling. He became deaf as a child and learned through books and tinkering. Edison began working at a young age; as a railroad telegrapher, he spent much of his time inventing improvements to telegraph systems. By the age of 22, he had sold a few of his early inventions and moved to New York City to focus on engineering. He had three children with his first wife, Mary, but Edison was neglectful. She died at 29 years old. Edison had troubled relationships with his children for the rest of his life. With the help of friends, the inventor attracted investment and grew his company. By the age of 29, he owned a telegraph recorder factory in Newark with over one hundred employees. Edison expanded, developing Menlo Park, now considered the first industrial research laboratory. Edison, known as "The Wizard of Menlo Park", drove his staff extremely hard and constantly worked himself and his associates to exhaustion. The inventor also drove up investment and publicity. He rose to international fame with the invention of the phonograph which took many years to turn into a commercial success. He later built a larger research lab in West Orange, New Jersey. In 1878, Edison began working on an electrical lighting system which he hoped would replace the common gas lamp. Going from electrical light bulb to the modern electric grid took decades of invention, investment, and influence. Edison and his colleagues had the opportunity to get enormously wealthy as they designed and built a nation of light bulbs, generators, and electric distribution systems. Competition with Westinghouse's AC system forced Edison to yield and resulted in the creation of General Electric. Edison simultaneously created a mining company, which was never profitable, and he nearly went bankrupt. As his role in the illumination business declined, he established a cement company and began work on a motion picture camera. The motion picture camera went from an invention to the first movie production studio. He traveled around the United States and Europe promoting his many innovations, during which he met Mina, his second wife. They had three children together, and Edison was again neglectful. During their adulthood, he began to take more interest in his sons and they eventually worked for him. Charles Edison took over his father's business when he died. In addition to acute health issues from handling toxic and radioactive chemicals during his various experiments, Thomas faced a lifelong battle against diabetes. He worked vigorously until his death. Following the success of the illumination business, he ran several companies which produced batteries, movies, musical records, and phenol. His last obsession was the search for domestic rubber production.

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 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.

On Monday, 21 January 1924, at 18:50 EET, Vladimir Lenin, leader of the October Revolution and the first leader and founder of the Soviet Union, died in Gorki aged 53 after falling into a coma. The official cause of death was recorded as an incurable disease of the blood vessels. Lenin was given a state funeral and then buried in a specially erected mausoleum on 27 January. A commission of the Central Committee of the RCP(b) was in charge of organising the funeral.

Abdulaziz bin Abdul Rahman bin Faisal Al Saud, known in the Western world as Ibn Saud, and known with his kunya Abu Turki, was a Najdi war leader, statesman, and religious leader who became the founder and first King of Saudi Arabia, reigning from 23 September 1932 until his death in 1953. He had ruled parts of the kingdom since 1902, having previously been Emir, Sultan, King of Nejd, and King of Hejaz.

The Bundaberg tragedy (or Bundaberg disaster) was a medical disaster that occurred in January 1928, resulting in the deaths of 12 children in Bundaberg, Queensland, Australia. A royal commission concluded that the deaths were caused by the contamination of a diphtheria vaccine with the bacterium Staphylococcus aureus.

The Lockheed P-38 Lightning is an American single-seat, twin-engined fighter aircraft that was used during World War II. Developed for the United States Army Air Corps (USAAC) by the Lockheed Corporation, the P-38 incorporated a distinctive twin boom design with a central nacelle containing the cockpit and armament. Along with its use as a general fighter, the P-38 was used in various aerial warfare roles, including as a fighter-bomber, a night fighter, and a long-range escort fighter when equipped with drop tanks. The P-38 was also used as a bomber-pathfinder, guiding streams of medium and heavy bombers, or even other P-38s equipped with bombs, to their targets. Although it was not designated a heavy fighter or a bomber destroyer by the USAAC, the P-38 filled those roles and more; unlike German heavy fighters crewed by two or three airmen, the P-38, with its lone pilot, was nimble enough to compete with single-engined fighters. Some 1200 Lightnings, about one of every nine, were assigned to aerial reconnaissance, with cameras replacing weapons to become the F‑4 or F‑5 model; in this role, it was one of the most prolific reconnaissance airplanes in the war. The P-38 was used most successfully in the Asiatic-Pacific and China Burma India theaters of operation as the aircraft of America's top flying aces: Richard Bong (40 victories), Thomas McGuire (38 victories), and Charles H. MacDonald (27 victories). In the South West Pacific theatre, the P-38 was the primary long-range fighter of United States Army Air Forces until the introduction of large numbers of P-51D Mustangs toward the end of the war. Unusually for an early-war fighter design, both engines were supplemented by turbocharger, making it one of the earliest Allied fighters capable of performing well at high altitudes. The turbosuperchargers also muffled the exhaust, making the P-38's operation relatively quiet. The Lightning was extremely forgiving in flight and could be mishandled without incident in many ways, but the initial rate of roll in early versions was low relative to other contemporary fighters; this was addressed in later variants with the introduction of hydraulically boosted ailerons. The smaller and more streamlined P-51 was significantly faster in a dive, which led to the P-51 replacing the P-38 in most European fighter groups by mid-1944. The P-38 was the only American fighter aircraft in large-scale production throughout American involvement in the war, from the Attack on Pearl Harbor to Victory over Japan Day.

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 Siege of Leningrad was a military blockade undertaken by the Axis powers against the city of Leningrad (present-day Saint Petersburg) in the Soviet Union on the Eastern Front of World War II from 1941 to 1944. Leningrad, the country's second largest city, was besieged by Germany and Finland for 872 days, but never captured. The siege was the most destructive in history and possibly the most deadly, causing an estimated 1.5 million deaths, from a prewar population of 3.2 million. Some historians have classified it as a genocide due to the intentional destruction of the city and the systematic starvation of its civilian population. In August 1941, Germany's Army Group North reached the suburbs of Leningrad as Finnish forces moved to encircle the city from the north. Land routes from Leningrad to the rest of the Soviet Union were cut on 8 September 1941, beginning the siege. The Germans decided to bomb the city and starve its inhabitants rather than attempt to capture it; many residents starved during the winter of 1941–1942. Supplies were delivered to the city by air, by ship over Lake Ladoga, or over the Road of Life, a highway built on the lake when it was frozen. A Red Army offensive opened a narrow land corridor to Leningrad on 18 January 1943, but the siege was not fully broken until 27 January 1944.

The 322nd Rifle Division was a standard Red Army rifle division during World War II. It is most notable for liberating Auschwitz concentration camp as part of the 60th Army on January 27, 1945, in the course of the Vistula-Oder offensive. Prior to this the division also distinguished itself during the second liberation of Zhitomir on the last day of 1943. It received further distinctions for its service in western Ukraine and in Poland. Along with many other distinguished Soviet formations it was disbanded with the coming of peace.

Nuclear weapons tests are experiments carried out to determine the performance of nuclear weapons and the effects of their explosion. Over 2,000 nuclear weapons tests have been carried out since 1945. Nuclear testing is a sensitive political issue. Governments have often performed tests to signal strength. Because of their destruction and fallout, testing has seen opposition by civilians as well as governments, with international bans having been agreed on. Thousands of tests have been performed, with most in the second half of the 20th century.

S-80 was a diesel-electric submarine of the Soviet Navy.

Trần Văn Hương was a South Vietnamese politician who was the penultimate president of South Vietnam for a week in April 1975 before its surrender to the communist forces of North Vietnam. Before ascending to the presidency, he served as vice president under President Nguyễn Văn Thiệu since October 1971 after being elected on a joint ticket with Thiệu in the 1971 South Vietnamese presidential election. Prior to that, he was prime minister for three months from November 1964 to January 1965 under the supervision of a military junta led by General Nguyễn Khánh; during this time, there was widespread civil unrest from the Buddhist majority and power struggles with the military. He also served as prime minister again from May 1968 to August 1969.

The Apollo program, also known as Project Apollo, was the United States human spaceflight program led by NASA, which landed the first humans on the Moon in 1969. The Apollo program was conceived in 1960 in the Dwight D. Eisenhower presidency during Project Mercury and executed after Project Gemini. The Apollo program was later dedicated to President John F. Kennedy's national goal, "before this decade is out, of landing a man on the Moon and returning him safely to the Earth" in his address to the U.S. Congress on May 25, 1961.

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 Paris Peace Accords, officially the Agreement on ending the war and restoring peace in Viet-Nam, was a peace agreement signed on 27 January 1973 to establish peace in Vietnam and end the Vietnam War. It included a main treaty and accompanying annexes. The agreement was registered by the United States of America on May 13, 1974, with the United Nations Secretariat. It is recorded in the United Nations Treaty Series (UNTS) under Volume 935, Treaty No.13295. The agreement entered into force upon signature and included a cease-fire, which was scheduled to take effect at 24:00 GMT on 27 January. The agreement was signed by the Democratic Republic of Vietnam, the Republic of Vietnam, the Provisional Revolutionary Government (PRG), and the United States. The PRG represented the Viet Cong, a South Vietnamese opposition movement de facto controlled by the North. US ground forces had begun to withdraw from Vietnam in 1969, and by the beginning of 1972 those that remained had very little involvement in combat. The last American infantry battalions withdrew in August 1972. Most air and naval forces, and most advisers, also were gone from South Vietnam by that time, though air and naval forces not based in South Vietnam were still playing a symbolic role in the war. The Paris Agreement removed the remaining US forces, and direct US military intervention ended. Fighting between the three remaining powers did not stop on 28 January, even for an hour. The agreement was not formally designated a treaty, and President Nixon did not ask the US Senate to ratify it.

The Iran hostage crisis began on November 4, 1979, when 66 Americans, including diplomats and other civilian personnel, were taken hostage at the Embassy of the United States in Tehran, with 52 of them being held until January 20, 1981. The incident occurred after the Muslim Student Followers of the Imam's Line stormed and occupied the building in the months following the Iranian Revolution. With support from Ruhollah Khomeini, who had led the Iranian Revolution and would eventually establish the present-day Islamic Republic of Iran, the hostage-takers demanded that the United States extradite Iranian king Mohammad Reza Pahlavi, who had been granted asylum by the Carter administration for cancer treatment. Notable among the assailants were Hossein Dehghan, Mohammad Ali Jafari, and Mohammad Bagheri. The hostage crisis contributed to a dramatic decline in Iran–United States relations. After 444 days, it came to an end with the signing of the Algiers Accords between the Iranian and American governments; Pahlavi had died in Cairo, Egypt, on July 27, 1980.

The Seikan Tunnel is a 53.85-kilometre (33.5-mile) dual-gauge railway tunnel in Japan, with a 23.3-kilometre (14.5-mile) segment running beneath the seabed of the Tsugaru Strait, which separates Aomori Prefecture on Honshu, Japan's main island, from the northern island of Hokkaido. The tunnel's track level lies approximately 100 metres (330 ft) below the seabed and 240 metres (790 ft) below sea level. Following several decades of planning and construction, the tunnel opened on 13 March 1988.

International Holocaust Remembrance Day, or the International Day in Memory of the Victims of the Holocaust, is an international memorial day on 27 January that commemorates the victims of the Holocaust, which resulted in the genocide of two-thirds of the European Jewish population along with numerous individuals of other minority groups, by Nazi Germany between 1933 and 1945: an attempt to implement its "Final Solution" to the Jewish question. The choice of 27 January for the annual commemoration aligns with the liberation of the Auschwitz concentration camp by the Red Army in 1945.

The National Recording Registry is a list of sound recordings that "are culturally, historically, or aesthetically significant, and inform or reflect life in the United States". The registry was established by the National Recording Preservation Act of 2000, which created the National Recording Preservation Board, whose members are appointed by the librarian of Congress. The recordings preserved in the United States National Recording Registry form a registry of recordings selected yearly by the National Recording Preservation Board for preservation in the Library of Congress.

The 2009 Honduran constitutional crisis was a political crisis in Honduras over plans by President Manuel Zelaya to hold a popular referendum to either rewrite the Constitution of Honduras or write a new one.

Apple Inc. is an American multinational technology company headquartered in Cupertino, California, in Silicon Valley, and known for consumer electronics, software and online services. Founded in 1976 as Apple Computer Company by Steve Jobs, Steve Wozniak and Ronald Wayne, the company was incorporated by Jobs and Wozniak as Apple Computer, Inc. the following year. Its current name was adopted in 2007 as the company expanded its focus from computers to consumer electronics. Apple is one of the Big Tech companies.

The Arab Spring was a series of pro-democracy anti-government protests, uprisings, and armed rebellions that spread across much of the Arab world in the early 2010s. It began in Tunisia in response to the death of Mohamed Bouazizi by self-immolation. From Tunisia, the protests initially spread to five other countries: Libya, Egypt, Yemen, Syria and Bahrain. The rulers deposed include: Zine El Abidine Ben Ali of Tunisia, Muammar Gaddafi of Libya, and Hosni Mubarak of Egypt, all in 2011; and Ali Abdullah Saleh of Yemen in 2012. Major uprisings and social violence occurred, including riots, civil wars, or insurgencies. Sustained street demonstrations took place in Morocco, Iraq, Algeria, Lebanon, Jordan, Kuwait, Oman and Sudan. Minor protests took place in Djibouti, Mauritania, Palestine, Saudi Arabia and the Western Sahara. A major slogan of the demonstrators in the Arab world is ash-shaʻb yurīd isqāṭ an-niẓām!.

Ursa Minor, also known as the Little Bear, is a constellation located in the far northern sky. As with the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the North American name, Little Dipper: seven stars with four in its bowl like its partner the Big Dipper. Ursa Minor was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, because of Polaris being the north pole star.

On 27 January 2013, 242 people were killed and at least 630 others injured in a fire in the Kiss nightclub in Santa Maria, Rio Grande do Sul, Brazil. The fire started between 2:00 and 2:30 a.m. (BRST) after a pyrotechnic ignited acoustic foam on the club's ceiling. As the electricity failed, clubgoers were unable to find the building's only exit. It is the second deadliest fire in Brazilian history, surpassed only by the Niterói circus fire of 1961.

The Rojava Revolution, also known as the Rojava conflict, was a political upheaval and military conflict that took place from 2012 to 2026 in northern Syria, known among Kurds as Western Kurdistan or Rojava.

Protests over the killing of Tyre Nichols began on January 27, 2023, following the release of police body camera and surveillance footage showing five Black officers from the Memphis Police Department beating Nichols, a 29-year-old Black man. The police assault on Nichols occurred on January 7, 2023, and he died three days later in a hospital. The five officers were subsequently fired and charged with second-degree murder. Protests first emerged in Memphis, Tennessee, and spread to several cities in the United States. Protesters demanded legal accountability for the officers responsible for Nichols death and for the enactment of police-reform measures.

On 27 January 2023, a Palestinian gunman killed at least seven civilians in the Israeli settlement of Neve Yaakov, in East Jerusalem, the occupied West Bank. The suspect is also reported as having shot at worshippers exiting a synagogue, and, according to the police, was shot and killed after he opened fire on the attending officers. It was Israel's deadliest peacetime Palestinian attack since the Jerusalem yeshiva attack in 2008.