December 17 in History

Saturnalia is an ancient Roman festival and holiday in honour of the god Saturn, held on 17 December in the Julian calendar and later expanded with festivities until 19 December. By the 1st century BC, the celebration had been extended until 23 December, for a total of seven days of festivities. The holiday was celebrated with a sacrifice at the Temple of Saturn, in the Roman Forum, and a public banquet, followed by private gift-giving, continual partying, and a carnival atmosphere that overturned Roman social norms: gambling was permitted, and masters provided table service for their slaves as it was seen as a time of liberty for both slaves and freedmen alike. A common custom was the election of a "King of the Saturnalia", who gave orders to people, which were followed and presided over the merrymaking. The gifts exchanged were usually gag gifts or small figurines made of wax or pottery known as sigillaria. The poet Catullus called it "the best of days". Saturnalia was the Roman equivalent and descendant of the earlier Greek holiday of Kronia, which was celebrated during the Attic month of Hekatombaion in late midsummer, lasting one day. The Saturnalia was celebrated by the Greeks in the Roman Empire as well, under its old Greek name (Ancient Greek: Κρόνια). It held theological importance for some Romans, who saw it as a restoration of the ancient Golden Age, when the world was ruled by Saturn. The Neoplatonist philosopher Porphyry interpreted the freedom associated with Saturnalia as symbolizing the "freeing of souls into immortality". Saturnalia may have influenced some of the customs associated with later celebrations in western Europe occurring in midwinter, particularly traditions associated with Christmas, the Feast of the Holy Innocents, and Epiphany. In particular, the historical western European Christmas custom of electing a "Lord of Misrule" may have its roots in Saturnalia celebrations.

In 546, Rome was besieged for a year by the Gothic king Totila during the Gothic War between the Ostrogoths (Goths) and the Byzantine Empire. The siege caused devastating famine inside the city, worsened by corruption among Byzantine commanders, who hoarded grain and sold it at inflated prices to Rome's citizens. Some citizens died of suicide, while others died trying to flee the city. Attempts by General Belisarius to relieve the city failed due to poor coordination and setbacks. Belisarius fell ill and withdrew his forces. On 17 December 546, a group of Isaurian guards betrayed the city and assisted a small group of Goths in breaching the walls. The Goths opened one of the gates at night for the rest of the Gothic forces to enter Rome. Most of the inhabitants fled, leaving only a small number of civilians who sought refuge in churches. The city was then plundered. Totila planned to destroy the monuments and principal buildings of Rome, but he reconsidered after receiving a letter from Belisarius urging him to spare the city. The Goths partially dismantled Rome's walls before withdrawing, aiming to weaken its strategic value for the Byzantines to recapture it. Despite the city's desolate state, Belisarius repaired the fortifications and successfully defended the city. The siege was the first check against Totila's streak of successes during the Gothic resurgence.

Romanos I Lakapenos or Lekapenos (Greek: Ῥωμανός Λακαπηνός or Λεκαπηνός, romanized: Rōmanos Lakapēnos or Lekapēnos; c. 870 – 15 June 948), Latinized as Romanus I Lacapenus or Romanus I Lecapenus, was Byzantine emperor from 920 until his deposition in 944, serving as regent for and senior co-ruler of the young Constantine VII.

William Longsword (French: Guillaume Longue-Épée, Old Norman: Williame de lon Espee, Latin: Willelmus Longus Ensis, Old Norse: Vilhjálmr Langaspjót; c. 893 – 17 December 942) was the second ruler of Normandy, from 927 until his assassination in 942.

Margaret II of Avesnes (1311 – 23 June 1356) was Countess of Hainaut and Countess of Holland (as Margaret I) from 1345 to 1356. She was Holy Roman Empress and Queen of Germany by marriage to Holy Roman Emperor Louis IV the Bavarian.

The Tughlaq dynasty was the third dynasty to rule over the Delhi Sultanate in the medieval Indian subcontinent. The dynasty came to power in 1320 when Ghazi Malik assumed the throne in Delhi under the title of Ghiyath al-Din Tughluq, and ended in 1413.

Pope Paul III was head of the Catholic Church and ruler of the Papal States from 13 October 1534 to his death, in November 1549.

The Cologne War was a conflict between Protestant and Catholic factions that devastated the Electorate of Cologne, a historical ecclesiastical principality of the Holy Roman Empire, within present-day North Rhine-Westphalia, in Germany. The war occurred within the context of the Protestant Reformation in Germany and the subsequent Counter-Reformation, and concurrently with the Dutch Revolt and the French Wars of Religion.

Emperor Go-Yōzei (後陽成天皇, Go-Yōzei-tennō; Japanese pronunciation: [ɡo̞jo̞ːze̞ː tẽ̞nːo̞ː]) (December 31, 1571 – September 25, 1617) was the 107th Emperor of Japan, according to the traditional order of succession. Go-Yōzei's reign spanned the years 1586 through to his abdication in 1611, corresponding to the transition between the Azuchi–Momoyama period and the Edo period. This 16th-century sovereign was named after the 9th-century Emperor Yōzei, and go- (後), translates as later, and thus, he could be called the "Later Emperor Yōzei". The Japanese word go has also been translated to mean the second one, and in some older sources, this emperor may be identified as "Yōzei, the second", or as "Yōzei II".

Blood transfusion is the process of transferring blood products into a person's circulation intravenously. Transfusions are used for various medical conditions to replace lost components of the blood. Early transfusions used whole blood, but modern medical practice commonly uses only components of the blood, such as red blood cells, plasma, platelets, and other clotting factors. White blood cells are transfused only in very rare circumstances, since granulocyte transfusion has limited applications. Whole blood has come back into use in the trauma setting.

The War of the Quadruple Alliance, 1718 to 1720, was a conflict between Spain and a coalition of Austria, Great Britain, France, and Savoy, with the addition of the Dutch Republic in 1719. Military operations focused primarily on Sicily and Spain, with minor engagements in North America. The Spanish-backed Jacobite rising of 1719 in Scotland is considered a related conflict. Seeking to recover territories ceded under the 1713 Peace of Utrecht, Spanish troops landed on Sicily in July 1718. On 2 August, Austria, France, Britain and Savoy formed the Quadruple Alliance, and on 11 August, the Royal Navy defeated a Spanish fleet at the Battle of Cape Passaro. Austrian land forces retook Sicily in October 1719, and the British sacked Vigo, which forced its leaders to seek peace terms. The Treaty of The Hague (1720) restored the position prior to 1717, with Savoy and Austria exchanging Sardinia and Sicily.

The American Revolution (1765–1789) was a political movement in the Thirteen Colonies of Great Britain. It began as a rebellion and turned into a revolution eventually creating the sovereign United States, which was the outcome of the associated American Revolutionary War (1775–1783). The Second Continental Congress, as the provisional government, established the Continental Army and appointed George Washington as its commander-in-chief in 1775. The following year, the Congress passed the Lee Resolution on July 2nd and unanimously adopted the Declaration of Independence on July 4th. Throughout most of the war, the outcome appeared uncertain, but a 1781 victory by Washington and the Continental Army in the Siege of Yorktown led King George III and the Fox–North coalition in government to negotiate the cessation of colonial rule and the acknowledgment of American sovereignty, which was formalized in the Treaty of Paris, signed on September 3, 1783. The Constitution took effect in 1789 and the Bill of Rights was ratified in 1791.

The Aztec sun stone (Spanish: Piedra del Sol) is a late post-classic Mexica sculpture housed in the National Anthropology Museum in Mexico City, and is perhaps the most famous work of Mexica sculpture. It measures 3.6 metres (12 ft) in diameter and 98 centimetres (39 in) thick, and weighs 24,590 kg (54,210 lb). Shortly after the Spanish conquest, the monolithic sculpture was buried in the Zócalo, the main square of Mexico City. It was rediscovered on 17 December 1790 during repairs on the Mexico City Cathedral. Following its rediscovery, the sun stone was mounted on an exterior wall of the cathedral, where it remained until 1885. Early scholars initially thought that the stone was carved in the 1470s, though modern research suggests that it was carved some time between 1502 and 1521.

The Napoleonic Wars (1803–1815) were a global series of conflicts fought by a fluctuating array of European coalitions against the French First Republic (1803–1804) under the First Consul followed by the First French Empire (1804–1815) under the Emperor of the French, Napoleon. The wars originated in political forces arising from the French Revolution (1789–1799) and French Revolutionary Wars (1792–1802) and produced a period of French domination over continental Europe. The wars are categorised as seven conflicts, five named after the coalitions that fought Napoleon, plus two named for their respective theatres: the War of the Third Coalition, War of the Fourth Coalition, War of the Fifth Coalition, War of the Sixth Coalition, War of the Seventh Coalition, the Peninsular War, and the French invasion of Russia.

The War of 1812 was a conflict initiated by the United States against the United Kingdom and its allies fought mainly in North America and at sea during the wider Napoleonic Wars. The United States declared war on Britain on 18 June 1812. Although peace terms were agreed upon in the December 1814 Treaty of Ghent, the war did not officially end until the peace treaty was ratified by the United States Senate on 17 February 1815.

Simón José Antonio de la Santísima Trinidad Bolívar Palacios Ponte y Blanco was a Venezuelan military officer and statesman who led what are currently the countries of Bolivia, Colombia, Ecuador, Panama, Peru, and Venezuela to independence from the Spanish Empire. He is known colloquially as El Libertador, "the Liberator," of America.

The 1835 Great Fire of New York was one of three fires that rendered extensive damage to New York City in the 18th and 19th centuries. The fire occurred in the middle of an economic boom, covering 17 city blocks, killing two people, and destroying hundreds of buildings, with an estimated $20 million of property damage (equivalent to $640 million in 2025).

The fire in the Winter Palace of Saint Petersburg, then the official residence of the Russian emperors, occurred on December 17, 1837, and was caused by soot inflammation. The Palace burned for three days, and the glow was visible for 50–70 versts (50–75 km; 31–47 mi). Thirty guardsmen died in the fire, although nearly all the items were saved (notably the imperial throne, guards banners, portraits of Russian generals from the Field Marshals' Hall and Military Gallery and the utensils of the Grand Church).

The American Civil War was a civil war in the United States between the Union and the Confederacy, 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.

Franz Schubert's Symphony in B minor, D. 759, commonly known as the Unfinished Symphony, is a musical composition that Schubert started in 1822 but left with only two movements—though he lived for another six years. A scherzo, nearly completed in piano score but with only two pages orchestrated, also survives.

Vogue, also known as American Vogue, is a monthly fashion magazine that covers style news, including haute couture, beauty, fashion, culture, living, and runway. Founded in 1892 by Arthur Baldwin Turnure, it is part of the global collection of Condé Nast's VOGUE media. Since 2025, Chloe Malle has overseen the magazine's editorial content. Anna Wintour served as editor-in-chief of the publication from 1988 to 2025 and now leads global operations for the publication as Global Chief Content Officer and Global Editorial Director overseeing Vogue and other Condé Nast titles.

Pittsburgh is a city in Allegheny County, Pennsylvania, United States, and its county seat. Located in southwestern Pennsylvania where the Allegheny and Monongahela Rivers meet to form the Ohio River, it had a population of 302,971 at the 2020 census, making it the second-most populous city in Pennsylvania after Philadelphia. The Pittsburgh metropolitan area has over 2.43 million people, making it the largest in the Ohio Valley and Appalachia, the second-largest in Pennsylvania, and the 28th-largest in the U.S. The greater Pittsburgh–Weirton–Steubenville combined statistical area includes parts of Ohio and West Virginia.

The Wright brothers, Orville Wright (August 19, 1871 – January 30, 1948) and Wilbur Wright (April 16, 1867 – May 30, 1912), were American aviation pioneers generally credited with inventing, building, and flying the world's first successful airplane. They made the first controlled, sustained flight of an engine-powered, heavier-than-air aircraft with the Wright Flyer on December 17, 1903, four miles (6 km) south of Kitty Hawk, North Carolina, at what is now known as Kill Devil Hills. In 1904 the Wright brothers developed the Wright Flyer II, which made longer-duration flights including the first circle, followed in 1905 by the first truly practical fixed-wing aircraft, the Wright Flyer III. The brothers' breakthrough invention was their creation of a three-axis control system, which enabled the pilot to steer the aircraft effectively and to maintain its equilibrium. Their system of aircraft controls made fixed-wing powered flight possible and remains standard on airplanes of all kinds. Their first U.S. patent, written in March 1903, before their first flight at Kitty Hawk, did not claim invention of a flying machine, but rather a system of aerodynamic control that manipulated a flying machine's surfaces. From the beginning of their aeronautical work, Wilbur and Orville focused on developing a reliable method of pilot control as the key to solving "the flying problem". This approach differed significantly from other experimenters of the time who put more emphasis on developing powerful engines. Using a small home-built wind tunnel, the Wrights also collected more accurate data than any before, enabling them to design more efficient wings and propellers. The brothers gained the mechanical skills essential to their success by working for years in their Dayton, Ohio-based shop with printing presses, bicycles, motors, and other machinery. Their work with bicycles, in particular, influenced their belief that an unstable vehicle such as a flying machine could be controlled and balanced with practice. This was a trend, as many other aviation pioneers were also dedicated cyclists and involved in the bicycle business in various ways. From 1900 until their first powered flights in late 1903, the brothers conducted extensive glider tests that also developed their skills as pilots. Their shop mechanic Charles Taylor became an important part of the team, building their first airplane engine in close collaboration with the brothers. The Wright brothers' status as inventors of the airplane has been subject to numerous counter-claims. Much controversy persists over the many competing claims of early aviators. Edward Roach, historian for the Dayton Aviation Heritage National Historical Park, argues that the Wrights were excellent self-taught engineers who could run a small company well, but did not have the business skills or temperament necessary to dominate the rapidly growing aviation industry at the time.

Gongsar Ugyen Wangchuck (Dzongkha: ཨོ་རྒྱན་དབང་ཕྱུག, Wylie: o rgyan dbang phyug; 11 June 1862 – 26 August 1926) was the founder and first king of Bhutan, reigning from 17 December 1907 until his death in 1926. In his lifetime, he made efforts to unite the fledgling country.

The Darwin rebellion of 17 December 1918 was the culmination of unrest in the Australian Workers' Union which had existed between 1911 and early 1919. Led by Harold Nelson, over 1,000 demonstrators marched on Government House at Liberty Square in Darwin, Northern Territory, Australia where they burnt an effigy of the Administrator of the Northern Territory, John Gilruth, and demanded his resignation. Their grievances were against the two main Northern Territory employers, Vestey’s Meatworks and the Commonwealth of Australia, and concerned political representation, unemployment, taxation and ongoing industrial disputes following the implementation of the White Australia policy. Gilruth and his family left Darwin soon afterwards under the protection of HMAS Encounter, while the Vestey company permanently closed its Darwin operations in 1920. The event was described as the nearest thing to a revolution in Australia since the Eureka Stockade rebellion at Ballarat in 1854.

Antanas Smetona (Lithuanian: [ɐnˈtǎːnɐs sʲmʲɛtoːˈnɐ] ; 10 August 1874 – 9 January 1944) was a Lithuanian intellectual, journalist, and politician. He served as the first president of Lithuania from 1919 to 1920 and later as the authoritarian head of state from 1926 until the Soviet occupation of Lithuania in 1940. Referred to as the "Leader of the Nation" during his presidency, Smetona is recognised as one of the most important Lithuanian political figures between World War I and World War II, and a prominent ideologist of Lithuanian nationalism and the movement for national revival. Born into a farming family in the village of Užulėnis, Kovno Governorate, Smetona exhibited a strong interest in education and Lithuanian cultural identity from an early age. He attended Palanga Progymnasium and later graduated from Jelgava Gymnasium. He pursued higher education at the Saint Petersburg Imperial University, where he studied law and became involved in nationalist and cultural movements. During this time, he contributed to the Lithuanian press, advocating for national self-determination and the preservation of Lithuanian culture under Russian imperial rule. After completing his studies, he worked as a teacher and journalist, eventually becoming one of the key intellectual leaders of the Lithuanian National Revival. The Russian Revolution of 1917 and the subsequent collapse of the Russian Empire provided a pivotal opportunity for Smetona and other Lithuanian leaders to pursue national independence. As a member of the Council of Lithuania, he was instrumental in the drafting and signing of the Act of Independence on 16 February 1918, which proclaimed the restoration of an independent Lithuania. During the interwar period, Smetona emerged as a prominent political figure, serving as the first President and later taking power in a coup d'état in 1926. Under his leadership, Lithuania pursued a policy of neutrality and underwent significant economic and cultural development, despite the challenges posed by regional instability and the rise of authoritarian regimes in Europe. After the Soviet Union occupied Lithuania in 1940, Smetona fled to Germany and later to the United States, where he lived in exile until his death in Cleveland, Ohio, in 1944. His legacy remains a topic of debate among historians. While some view him as a pivotal figure in the establishment of Lithuanian independence and the promotion of national identity, others criticize his authoritarian rule and suppression of political opposition.

Rajendra Nath Lahiri (23 June 1901 — 17 December 1927), known simply as Rajendra Lahiri, was an Indian revolutionary, who was a mastermind behind the Kakori conspiracy and Dakshineshwar bombing. He was an active member of the Hindustan Republican Association, aimed at ousting the British from India.

Bhagat Singh (27 September 1907 – 23 March 1931) was an Indian anti-colonial revolutionary who participated in the mistaken murder of a junior British police officer in December 1928 in what was intended to be retaliation for the death of an Indian nationalist. He later took part in a largely symbolic bombing of the Central Legislative Assembly in Delhi and a hunger strike in jail, which—on the back of sympathetic coverage in Indian-owned newspapers—turned him into a household name in the Punjab region, and, after his execution at age 23, a martyr and folk hero in Northern India. Borrowing ideas from Bolshevism and anarchism, the charismatic Bhagat Singh electrified a growing militancy in India in the 1930s and prompted urgent introspection within the Indian National Congress's nonviolent, and eventually successful, campaign for India's independence. In December 1928, Bhagat Singh and an associate, Shivaram Rajguru, both members of a small revolutionary group, the Hindustan Socialist Republican Association (also Army, or HSRA), shot dead a 21-year-old British police officer, John P. Saunders, in Lahore, Punjab, in what is today Pakistan, mistaking Saunders, who was still on probation, for the British senior police superintendent, James Scott, whom they had intended to assassinate. They held Scott responsible for the death of a popular Indian nationalist leader Lala Lajpat Rai for having ordered a lathi (baton) charge in which Rai was injured and two weeks thereafter died of a heart attack. As Saunders exited a police station on a motorcycle, he was felled by a single bullet fired from across the street by Rajguru, a marksman. As he lay injured, he was shot at close range several times by Singh, the postmortem report showing eight bullet wounds. Another associate of Singh, Chandra Shekhar Azad, shot dead an Indian police head constable, Channan Singh, who attempted to give chase as Singh and Rajguru fled. After having escaped, Bhagat Singh and his associates used pseudonyms to publicly announce avenging Lajpat Rai's death, putting up prepared posters that they had altered to show John Saunders as their intended target instead of James Scott. Singh was thereafter on the run for many months, and no convictions resulted at the time. Surfacing again in April 1929, he and another associate, Batukeshwar Dutt, set off two low-intensity homemade bombs among some unoccupied benches of the Central Legislative Assembly in Delhi. They showered leaflets from the gallery on the legislators below, shouted slogans, and allowed the authorities to arrest them. The arrest, and the resulting publicity, brought to light Singh's complicity in the John Saunders case. Awaiting trial, Singh gained public sympathy after he joined fellow defendant Jatin Das in a hunger strike, demanding better prison conditions for Indian prisoners, the strike ending in Das's death from starvation in September 1929. Bhagat Singh was convicted of the murder of John Saunders and Channan Singh, and hanged in March 1931, aged 23. He became a popular folk hero after his death. Jawaharlal Nehru wrote about him: "Bhagat Singh did not become popular because of his act of terrorism but because he seemed to vindicate, for the moment, the honour of Lala Lajpat Rai, and through him of the nation. He became a symbol; the act was forgotten, the symbol remained, and within a few months each town and village of the Punjab, and to a lesser extent in the rest of northern India, resounded with his name." In still later years, Singh, an atheist and socialist in adulthood, won admirers in India from among a political spectrum that included both communists and right-wing Hindu nationalists. Although many of Singh's associates, as well as many Indian anti-colonial revolutionaries, were also involved in daring acts and were either executed or died violent deaths, few came to be lionised in popular art and literature as did Singh, who is sometimes referred to as the Shaheed-e-Azam ("Great martyr" in Urdu and Punjabi).

The 1933 NFL Championship Play-off Game was the first scheduled championship game of the National Football League (NFL) since its founding in 1920. It was played on December 17 at Wrigley Field in Chicago, and the attendance was estimated at 25,000. The game was between the champions of the league's newly created divisions: the Chicago Bears (10–2–1) of the Western Division and the New York Giants (11–3) of the Eastern Division. Chicago gained the home field due to a better winning percentage in the regular season; after this year the home field alternated, with the Eastern Division champion hosting in even-numbered years and the Western in odd. Chicago scored the winning touchdown with less than two minutes to go in the fourth quarter, capping a 23–21 victory. It was the Bears' second consecutive championship and third under founder and head coach George Halas.

The Douglas DC-3 is a propeller-driven airliner that was manufactured by the Douglas Aircraft Company. It had a lasting effect on the airline industry from the 1930s through World War II. It was developed as a larger, improved, 14-bed sleeper version of the Douglas DC-2. It is a low-wing metal monoplane with conventional landing gear, powered by two radial piston engines of 1,000–1,200 hp (750–890 kW). Although the DC-3s originally built for civil service had the Wright R-1820 Cyclone, later civilian DC-3s used the Pratt & Whitney R-1830 Twin Wasp engine. The DC-3 has a cruising speed of 207 mph (333 km/h), a capacity of 21 to 32 passengers or 6,000 lb (2,700 kg) of cargo, and a range of 1,500 mi (2,400 km); it can operate from short runways.

Otto Hahn was a German chemist who was a pioneer in the field of radiochemistry. He is referred to as the father of nuclear chemistry and discoverer of nuclear fission, the science behind nuclear reactors and nuclear weapons. Hahn and Lise Meitner discovered isotopes of the radioactive elements radium, thorium, protactinium and uranium. He also discovered the phenomena of atomic recoil and nuclear isomerism, and pioneered rubidium–strontium dating. In 1938, Hahn, Meitner and Fritz Strassmann discovered nuclear fission, for which Hahn alone was awarded the 1944 Nobel Prize in Chemistry.

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 Chinese Exclusion Act of 1882 was a United States federal law signed by President Chester A. Arthur on May 6, 1882, prohibiting all immigration of Chinese laborers for 10 years. The law made exceptions for travelers and diplomats. The Act also denied Chinese residents already in the US the ability to become citizens and Chinese people traveling in or out of the country were required to carry a certificate identifying their status or risk deportation. It was the first major US law implemented to prevent all members of a specific national group from immigrating to the United States, and therefore significantly shaped twentieth-century immigration policy.

The Battle of the Bulge, also known as the Ardennes Offensive and referred to by the Germans as Unternehmen Wacht am Rhein, was an offensive campaign on the Western Front during the Second World War, taking place from 16 December 1944 to 25 January 1945. It was launched through the densely forested Ardennes region of eastern Belgium and northern Luxembourg and was intended to stop Allied use of the Belgian port of Antwerp and to split the Allied lines, allowing the Germans to encircle and destroy each of the four Allied armies and force the western Allies to negotiate a peace treaty in the Axis powers' favor.

Kurdistan, or Greater Kurdistan, is a roughly defined geo-cultural region and stateless nation in West Asia wherein the Kurds form a prominent majority population and the Kurdish culture, languages, and national identity have historically been based. Geographically, Kurdistan roughly encompasses the northwestern Zagros and the eastern Taurus mountain ranges.

The Boeing B-47 Stratojet is a retired American long-range, six-engined, turbojet-powered strategic bomber that was designed to fly at high subsonic speed and at high altitude to avoid enemy interceptor aircraft. The primary mission of the B-47 was as a nuclear bomber capable of striking targets within the Soviet Union.

The Finnish Security and Intelligence Service, formerly the Finnish Security Police and Finnish Security Intelligence Service, is the security and intelligence agency of Finland in charge of national security, such as counter-intelligence and counter-terrorism, under the jurisdiction of the Ministry of the Interior. The agency had a distinct role during the Cold War in monitoring communists as well as in the balance between Finnish independence and Soviet appeasement. After the 1990s, Supo has focused more on countering terrorism and in the 2010s, on preventing hybrid operations.

The North American F-86 Sabre, sometimes called the Sabrejet, is a transonic, jet-powered fighter aircraft. Produced by North American Aviation, the Sabre is best known as the United States' first swept-wing fighter that could counter the swept-wing Soviet MiG-15 in high-speed dogfights in the skies of the Korean War (1950–1953), fighting some of the earliest jet-to-jet battles. Considered one of the best and most important fighter aircraft in that war, the F-86 is also rated highly in comparison with fighters of other eras. Although it was developed in the late 1940s and was outdated by the end of the 1950s, the Sabre proved versatile and adaptable and continued as a front-line fighter in numerous air forces.

Haile Selassie I was Emperor of Ethiopia from 1930 to 1974. He rose to power as the Regent Plenipotentiary of Ethiopia under Empress Zewditu between 1916 and 1930.

On 17 December 1960, a Convair C-131D Samaritan operated by the United States Air Force on a flight from Munich to RAF Northolt crashed shortly after take-off from Munich-Riem Airport, due to fuel contamination. All 20 passengers and crew on board as well as 32 people on the ground were killed.

Harold Edward Holt was the 17th prime minister of Australia, serving from 1966 until his disappearance and presumed death in 1967. He held office as leader of the Liberal Party of Australia and held various ministerial positions from 1949 to 1966 in the governments of Robert Menzies and Arthur Fadden.

Project Blue Book was the code name for the systematic study of unidentified flying objects (UFOs) by the United States Air Force from March 1952 to its termination on December 17, 1969. The project, headquartered at Wright-Patterson Air Force Base, Ohio, was initially directed by Captain Edward J. Ruppelt and followed projects of a similar nature such as Project Sign established in 1947, and Project Grudge in 1949. Project Blue Book had two goals, namely, to determine if UFOs were a threat to national security, and to scientifically analyze UFO-related data.

The December 1970 protests in Poland, also known as the December 1970 events, December events, December revolution, and the Coast Massacre, occurred in northern Poland from 14–19 December 1970. The protests were sparked by a sudden increase in the prices of food and other everyday items while wages remained stagnant. Strikes were put down by the Polish People's Army and the Citizen's Militia, resulting in at least 44 people killed and more than 1,000 wounded.

In December 1973, Fatah, a Palestinian military organization executed a series of attacks originating at Rome-Fiumicino Airport in Italy, resulting in the deaths of 34 people. The attacks began with an airport-terminal invasion and hostage-taking, followed by the firebombing of a Pan Am aircraft and the hijacking of a Lufthansa flight.

James Lee Dozier is a retired United States Army officer. In December 1981, he was kidnapped by the Italian Red Brigades, a Marxist–Leninist guerilla group. After 42 days of captivity, he was rescued by NOCS – an elite Italian special forces unit – with help from the Intelligence Support Activity's Operation Winter Harvest. At the time, General Dozier was serving as deputy Chief of Staff at NATO's Southern European land forces headquarters in Verona, Italy. In a press statement, the Red Brigades claimed that the excellent diplomatic relations between the U.S. and Italy—and the fact that Dozier was an American officer invited to work in Italy—rendered his abduction "justified". To date, he remains the only American flag officer ever taken prisoner by a violent non-state actor.

The Provisional Irish Republican Army, officially known as the Irish Republican Army and informally known as the Provos, was an Irish republican paramilitary force that sought to end British rule in Northern Ireland, facilitate Irish reunification and bring about an independent socialist republic, which would encompass all of Ireland. It was the most active republican paramilitary group during the Troubles. It argued that the all-island Irish Republic continued to exist, and it saw itself as that state's army, the sole legitimate successor to the original IRA from the Irish War of Independence. It was designated a terrorist organisation in the United Kingdom and an unlawful organisation in the Republic of Ireland, both of whose authority it rejected.

The Romanian revolution was a period of violent civil unrest in the Socialist Republic of Romania during December 1989 as a part of the revolutions of 1989 that occurred in several countries around the world, primarily within the Eastern Bloc. The Romanian revolution started in the city of Timișoara and soon spread throughout the country, ultimately culminating in the drumhead trial and execution of longtime Romanian Communist Party (PCR) General Secretary Nicolae Ceaușescu and his wife Elena, and the end of 42 years of Communist rule in Romania. It was also the last removal of a Marxist–Leninist government in a Warsaw Pact country during the events of 1989, and the only one that violently overthrew a country's leadership and executed its leader; according to estimates, over one thousand people died and thousands more were injured.

The Simpsons is an American animated sitcom created by Matt Groening and developed by Groening, James L. Brooks and Sam Simon for the Fox Broadcasting Company. It is a satirical depiction of American life, epitomized by the Simpson family, which consists of Homer, Marge, Bart, Lisa, and Maggie. Set in the fictional town of Springfield, in an unspecified location in the United States, it caricatures society, Western culture, television, and the human condition.

The internal conflict in Peru is an armed conflict between the Government of Peru and the Maoist guerrilla group Shining Path. The conflict's main phase began on 17 May 1980 and ended in December 2000. From 1982 to 1997 the Túpac Amaru Revolutionary Movement (MRTA) waged its own insurgency as a Marxist–Leninist rival to the Shining Path.

Aerosvit Flight 241 (VV241/AEW241) was a scheduled international passenger flight from the Ukrainian city of Odesa to Thessaloniki, Greece. On 17 December 1997, the Yakovlev Yak-42 operating the flight registered as UR-42334 flew into a mountainside during a missed approach into Thessaloniki in Greece. All 70 people aboard were killed.

The Second Congo War, also known as Africa's World War or the Great War of Africa, was a major conflict that began on 2 August 1998 in the Democratic Republic of the Congo (DRC), just over a year after the First Congo War. The war initially erupted when Congolese president Laurent-Désiré Kabila turned against his former allies from Rwanda and Uganda, who had helped him seize power. The conflict expanded as Kabila rallied a coalition of other countries to his defense. The war drew in nine African nations and approximately 25 armed groups, making it one of the largest wars in African history.

On 4 August 2002, two 10-year-old girls, Holly Marie Wells and Jessica Amiee Chapman, were lured into the home of a local resident and school caretaker, Ian Huntley, in Soham, Cambridgeshire, England. Both children were murdered – most likely by asphyxiation – and their bodies disposed of in an irrigation ditch close to RAF Lakenheath in Suffolk. The bodies were discovered on 17 August 2002.

SpaceShipOne is an experimental air-launched rocket-powered aircraft with sub-orbital spaceflight capability at speeds of up to 3,000 ft/s (2,000 mph) / 910 m/s (3,300 km/h) using a hybrid rocket motor. The design features a unique "feathering" atmospheric reentry system where the rear half of the wing and the twin tail booms folds 70 degrees upward along a hinge running the length of the wing; this increases drag while retaining stability. SpaceShipOne completed the first crewed private spaceflight in 2004. That same year, it won the US$10 million Ansari X Prize and was immediately retired from active service. Its mother ship was named "White Knight". Both craft were developed and flown by Mojave Aerospace Ventures, which was a joint venture between Paul Allen and Scaled Composites, Burt Rutan's aviation company. Allen provided the funding of approximately US$25 million.

The International Day to End Violence Against Sex Workers is observed annually on 17 December by sex workers, their clientele, friends, families and allies. Originally conceived as a memorial and vigil for the victims of the Green River Killer in Seattle, Washington, US, it has evolved into an annual international event. The day calls attention to hate crimes committed against sex workers worldwide, as well as the need to remove the social stigma and discrimination that have contributed to violence against sex workers and indifference from the communities they are part of. Sex worker activists also claim that custom and prohibitionist laws perpetuate such violence.

The World Trade Organization (WTO) is an intergovernmental organization that regulates and facilitates international trade. Established on 1 January 1995, pursuant to the 1994 Marrakesh Agreement, it succeeded the General Agreement on Tariffs and Trade (GATT), which was created in 1948. As the world's largest international economic organization, the WTO has 166 members, representing over 98% of global trade and global GDP. It is headquartered in Geneva, Switzerland.

Jigme Singye Wangchuck is a member of the Wangchuck dynasty who reigned as King of Bhutan from 1972 until his abdication in 2006. He is the father of the present King Jigme Khesar Namgyal Wangchuck. He is the only son of five children born to the King Jigme Dorji Wangchuck and Queen Ashi Kesang Choden.

Danny F II was a cargo ship built in 1975 as a car carrier. She was renamed Danny F II when rebuilt as a livestock transporter in 1994. The ship capsized and sank off Lebanon on 17 December 2009, carrying 83 people, 10,224 sheep, and 17,932 cattle. 40 people were rescued and 11 found dead. The other crew, passengers and animals are presumed to have died.

Tarek El-Tayeb Mohamed Bouazizi was a Tunisian street vendor who, in response to the confiscation of his wares as well as the harassment and humiliation inflicted by municipal officials and their aides, set himself on fire on 17 December 2010 in Sidi Bouzid, Tunisia. His act of self-immolation was the most immediate cause of the Tunisian Revolution, which was the first revolution in the wider Arab Spring against autocratic regimes.

Modern diplomatic relations between Cuba and the United States are cold, stemming from historic conflict and divergent political ideologies. The two nations restored diplomatic relations on July 20, 2015, after relations had been severed in 1961 during the Cold War. The U.S. has maintained a comprehensive trade embargo against Cuba since 1960. The embargo includes restrictions on all commercial, economic, and financial activity, making it illegal for U.S. corporations to do business with Cuba.