January 5 in History

2005 — The dwarf planet Eris is discovered by Palomar Observatory-based astronomers, later motivating the International Astronomical Union (IAU) to define the term planet for the first time

January 5 spans 41 recorded events across recorded history, from 1477 to 2024. Below is a curated digest of the most significant moments tied to this date.

By thisDay.info Editorial Team · January 5 — Wikipedia

Historical Events 41 events 1477 – 2024

More major events on January 5

The featured story and these ranked highlights form a quick summary. Every recorded event remains available in the chronology below.

1967 Cultural Revolution: The Shanghai People's Commune is established following the seizure of power from local city officials by revolutionaries. Source
1944 The Daily Mail becomes the first major London newspaper to be published on both sides of the Atlantic Ocean. Source
1911 Kappa Alpha Psi, the world's third-oldest and largest black fraternity, is founded at Indiana University. Source

Did you know

In 2005, The dwarf planet Eris is discovered by Palomar Observatory-based astronomers, later motivating the International Astronomical Union (IAU) to define the term planet for the first time. This featured entry focuses on the immediate decision and its direct historical impact.

Did you know

The International Astronomical Union is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. This helps explain why the event mattered beyond the initial announcement.

Did you know

It was founded on 28 July 1919 in Brussels, Belgium, and is based in Paris, France. This clarifies the institutional and public response around the event.

Did you know

In 2005, The dwarf planet Eris is discovered by Palomar Observatory-based astronomers, later motivating the International Astronomical Union (IAU) to define the term planet for the first time had consequences that extended beyond the first headline. The key context is the institutions involved, the policy shift, and how the public response evolved afterward.

Did you know

In 2005, The dwarf planet Eris is discovered by Palomar Observatory-based astronomers, later motivating the International Astronomical Union (IAU) to define the term planet for the first time had consequences that extended beyond the first headline. The key context is the institutions involved, the policy shift, and how the public response evolved afterward.

Battle of Nancy: Charles the Bold is defeated and killed in a conflict with René II, Duke of Lorraine; Burgundy subsequently becomes part of France.

Part of the Burgundian Wars, 1477

The Battle of Nancy was the final and decisive battle of the Burgundian Wars, fought on 5 January 1477 outside the walls of Nancy, Lorraine by Charles the Bold, Duke of Burgundy, against René II, Duke of Lorraine, and the Swiss Confederacy. René's forces won the battle, and Charles' mutilated body was found two days later.

Wikipedia source

1477

Battle of Colmar: The French army defeats forces from Austria and Brandenburg.

1675 battle of the Franco-Dutch War

The Battle of Turckheim took place on 5 January 1675 during the Franco-Dutch War at a site between the towns of Colmar and Turckheim in Alsace. The French army, commanded by the Viscount of Turenne, defeated the armies of Austria and Brandenburg, led by Alexander von Bournonville and Frederick William, Elector of Brandenburg.

Wikipedia source

1675

Louis XV of France survives an assassination attempt by Robert-François Damiens, who becomes the last person to be executed in France by drawing and quartering (the traditional form of capital punishment used for regicides).

King of France from 1715 to 1774

Louis XV, known as Louis the Beloved, was King of France from 1 September 1715 until his death in 1774. He succeeded his great-grandfather Louis XIV at the age of five. Until he reached maturity in 1723, the kingdom was ruled by his grand-uncle Philippe II, Duke of Orléans, as Regent of France. Cardinal Fleury was chief minister from 1726 until his death in 1743, at which time the king took sole control of the kingdom.

Wikipedia source

1757

American Revolutionary War: Richmond, Virginia, is burned by British naval forces led by former American general Benedict Arnold.

1775–1783 conflict in North America

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.

Wikipedia source

1781

The government of Central America votes for total annexation to the First Mexican Empire.

Subregion of North America

Central America is a subregion of North America. Its political boundaries are defined as bordering Mexico to the north, Colombia to the southeast, the Caribbean to the east, and the Pacific Ocean to the southwest. Central America is usually defined as consisting of seven countries: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, and Panama, and also, in specialized contexts, including Mexico. Within Central America is the Mesoamerican biodiversity hotspot, which extends from southern Mexico to southeastern Panama. Due to the presence of several active geologic faults and the Central America Volcanic Arc, seismic activity in the region, such as volcanic eruptions and earthquakes, is high, which has caused death, injury, and property damage.

Wikipedia source

1822

The Palais Garnier, one of the most famous opera houses in the world, is inaugurated in Paris.

Opera house in Paris, France

The Palais Garnier, also known as Opéra Garnier, is a historic 1,979-seat opera house at the Place de l'Opéra in the 9th arrondissement of Paris, France. It was built for the Paris Opera from 1861 to 1875 at the behest of Emperor Napoleon III. Initially referred to as le nouvel Opéra de Paris, it soon became known as the Palais Garnier, "in acknowledgment of its extraordinary opulence" and the architect Charles Garnier's plans and designs, which are representative of the Napoleon III style. It was the primary theatre of the Paris Opera and its associated Paris Opera Ballet until 1989, when a new opera house, the Opéra Bastille, opened at the Place de la Bastille. The company now uses the Palais Garnier mainly for ballet. The theatre has been a monument historique of France since 1923.

Wikipedia source

1875

Dreyfus affair: French army officer Alfred Dreyfus is stripped of his rank and sentenced to life imprisonment on Devil's Island.

1894–1906 political scandal in France

The Dreyfus affair was a political scandal that divided the Third French Republic from 1894 until its resolution in 1906. The scandal began in December 1894 when Captain Alfred Dreyfus, a 35-year-old Alsatian French artillery officer of Jewish descent, was wrongfully convicted of treason for communicating French military secrets to the German Embassy in Paris. He was sentenced to life imprisonment and sent overseas to the penal colony on Devil's Island in French Guiana, where he spent the following five years imprisoned in very harsh conditions.

Wikipedia source

1895

Irish nationalist leader John Edward Redmond calls for revolt against British rule.

Irish politician (1856–1918)

John Edward Redmond was an Irish nationalist politician, barrister, and MP in the House of Commons of the United Kingdom. He was best known as leader of the moderate Irish Parliamentary Party (IPP) from 1900 until his death in 1918. He was also the leader of the paramilitary organisation the Irish National Volunteers (INV).

Wikipedia source

1900

Kappa Alpha Psi, the world's third-oldest and largest black fraternity, is founded at Indiana University.

International historically Black fraternity

Kappa Alpha Psi Fraternity, Inc. (ΚΑΨ) is a historically African American fraternity. Since the fraternity's founding on January 5, 1911, at Indiana University Bloomington, it has never restricted membership based on color, creed, or national origin, though membership traditionally is dominated by black men. The fraternity has over 260,000 members with 721 undergraduate and alumni chapters in every state of the United States, and international chapters in ten countries.

Wikipedia source

1911

The sixth All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens.

In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.

The Russian Social Democratic Labour Party (RSDLP), also known as the Russian Social Democratic Workers' Party (RSDWP) or the Russian Social Democratic Party (RSDP), was a socialist political party founded in 1898 in Minsk, Russian Empire. The party emerged from the merger of various Marxist groups operating under Tsarist repression, and was dedicated to the overthrow of the autocracy and the establishment of a socialist state based on the revolutionary leadership of the Russian proletariat.

Wikipedia source

1912

First Balkan War: The Battle of Lemnos begins; Greek admiral Pavlos Kountouriotis forces the Turkish fleet to retreat to its base within the Dardanelles, from which it did not venture for the rest of the war.

1912–1913 war between the Balkan League and the Ottoman Empire

The First Balkan War lasted from October 1912 to May 1913 and involved actions of the Balkan League against the Ottoman Empire. The Balkan states' combined armies overcame the initially numerically inferior and strategically disadvantaged Ottoman armies, achieving rapid success.

Wikipedia source

1913

The Ford Motor Company announces an eight-hour workday and minimum daily wage of $5 in salary plus bonuses.

American multinational automobile manufacturer

The Ford Motor Company is an American multinational automobile manufacturer headquartered in Dearborn, Michigan, United States. It was founded by Henry Ford and incorporated on June 16, 1903. The company sells automobiles and commercial vehicles under the Ford brand, and luxury cars under its Lincoln brand. The company is listed on the New York Stock Exchange under the single-letter ticker symbol F and is controlled by the Ford family. They have minority ownership but a plurality of the voting power.

Wikipedia source

1914

The German Workers' Party, which would become the Nazi Party, is founded in Munich.

Predecessor of the Nazi Party (1919–1920)

The German Workers' Party was an obscure far-right political party established in the Weimar Republic after World War I. It lasted from 5 January 1919 until 24 February 1920. The DAP was the precursor of the National Socialist German Workers' Party, commonly known as the Nazi Party.

Wikipedia source

1919

Nellie Tayloe Ross of Wyoming becomes the first female governor in the United States.

American politician (1876–1977)

Nellie Davis Tayloe Ross was an American educator and politician who served as the 14th governor of Wyoming from 1925 to 1927, and as the 28th and first female director of the United States Mint from 1933 to 1953. She was the first woman to serve as governor of a U.S. state, and remains the only woman to have served as governor of Wyoming. She was a Democrat and supported Prohibition.

Wikipedia source

1925

Construction of the Golden Gate Bridge begins in San Francisco Bay.

Bridge in the San Francisco Bay Area

The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the one-mile-wide (1.6 km) strait connecting San Francisco Bay and the Pacific Ocean in California, United States. The structure links San Francisco—the northern tip of the San Francisco Peninsula—to Marin County, carrying both U.S. Route 101 and California State Route 1 across the strait. It also carries pedestrian and bicycle traffic, and is designated as part of U.S. Bicycle Route 95. Recognized by the American Society of Civil Engineers as one of the Wonders of the Modern World, the bridge is one of the most internationally recognized symbols of San Francisco and California.

Wikipedia source

1933

Amy Johnson, a 37-year-old pilot and the first woman to fly solo from London to Australia, disappears after bailing out of her plane over the River Thames, and is presumed dead.

British aviator (1903–1941)

Amy Johnson was a pioneering English pilot who was the first woman to fly solo from London to Australia.

Wikipedia source

1941

The Daily Mail becomes the first major London newspaper to be published on both sides of the Atlantic Ocean.

British tabloid newspaper

The Daily Mail, often known simply as the Mail, is a British daily middle-market tabloid-size conservative newspaper founded in 1896 and published in London. Its sister paper The Mail on Sunday was launched in 1982, a Scottish edition was launched in 1947, and an Irish edition in 2006. Content from the paper appears on the MailOnline news website, although the website is managed separately and has its own editor.

Wikipedia source

1944

The Soviet Union recognizes the new pro-Soviet Provisional Government of the Republic of Poland.

Country in Eurasia from 1922 to 1991

The Soviet Union, officially the Union of Soviet Socialist Republics (USSR), was a transcontinental country that spanned much of Eurasia from its formation in 1922 until its dissolution in 1991. It was the world's third-most populous country, the largest by area, and bordered twelve other countries. A diverse multinational state, it was organized as a federal union of national republics, with the largest and most populous being the Russian Soviet Federative Socialist Republic (SFSR). The world's flagship communist state, it was governed by the Communist Party under Marxism–Leninism, through soviet councils. The Soviet economy was also centrally planned. Its capital and largest city was Moscow.

Wikipedia source

1945

The Semiramis Hotel bombing kills at least 23 people.

1948 Jewish terror attack in Jerusalem

An attack was carried out by the Jewish paramilitary group Haganah on the Christian-owned Semiramis Hotel in the Katamon neighborhood of Jerusalem during the 1947–1948 Civil War in Mandatory Palestine.

Wikipedia source

1948

In his State of the Union address, United States President Harry S.

Truman unveils his Fair Deal program.

Harry S. Truman was the 33rd president of the United States, serving from 1945 to 1953. As the 34th vice president in 1945, he assumed the presidency upon the death of Franklin D. Roosevelt in April. Truman set up the Marshall Plan to rebuild the badly damaged economy of Western Europe. He established both the Truman Doctrine and NATO to contain the expansion of Soviet communism. A member of the Democratic Party, he proposed numerous New Deal coalition liberal domestic reforms, but few were enacted by the conservative coalition that dominated the United States Congress.

Wikipedia source

1949

The play Waiting for Godot by Samuel Beckett receives its première in Paris.

Play by Samuel Beckett

Waiting for Godot is a play by Irish playwright and author Samuel Beckett. It was written (1948–1949), first published (1952), and first performed (1953) in French as En attendant Godot. The play is Beckett's own English-language adaptation of the original. Subtitled "tragicomedy in two acts", it is his best-known literary work and is regarded by critics as "one of the most enigmatic plays of modern literature". In a public poll conducted by London's Royal National Theatre in the year 1998, Waiting for Godot was voted as "the most significant English-language play of the 20th century."

Wikipedia source

1953

In a speech given to the United States Congress, United States President Dwight D.

Eisenhower announces the establishment of what will later be called the Eisenhower Doctrine.

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.

Wikipedia source

1957

Cultural Revolution: The Shanghai People's Commune is established following the seizure of power from local city officials by revolutionaries.

Period of sociopolitical turmoil in China (1966–1976)

The Cultural Revolution, formally known as the Great Proletarian Cultural Revolution, was a sociopolitical movement in the People's Republic of China (PRC). It was launched by CCP chairman Mao Zedong in 1966 and lasted until his death in 1976. Its stated goal was to preserve Chinese communism by purging remnants of capitalist and traditional elements from Chinese society.

Wikipedia source

1967

Alexander Dubček comes to power in Czechoslovakia, effectively beginning the "Prague Spring".

Leader of Czechoslovakia from 1968 to 1969

Alexander Dubček was a Slovak statesman who served as the First Secretary of the Presidium of the Central Committee of the Communist Party of Czechoslovakia (KSČ) from January 1968 to April 1969 and as Chairman of the Federal Assembly from 1989 to 1992 following the Velvet Revolution. He oversaw significant reforms to the communist system during a period that became known as the Prague Spring, but his reforms were reversed and he was eventually sidelined following the Warsaw Pact invasion in August 1968.

Wikipedia source

1968

The Venera 5 space probe is launched at 06:28:08 UTC from Baikonur.

Soviet space probe to Venus in 1969

Venera 5 was a space probe in the Soviet space program Venera for the exploration of Venus.

Wikipedia source

1969

Ariana Afghan Airlines Flight 701 crashes in Fernhill, West Sussex, UK, while on approach to Gatwick Airport, killing 50 people.

1969 aviation accident

Ariana Afghan Airlines Flight 701 was a scheduled international flight involved in an aviation accident on 5 January 1969. The incident involved a Boeing 727 aircraft, carrying 62 individuals, that crashed into a residential property during its approach to London Gatwick Airport amidst heavy fog. The accident was primarily attributed to pilot error, specifically the failure to extend the flaps to maintain flight at the final approach speed.

Wikipedia source

1969

The 7.1 Mw Tonghai earthquake shakes Tonghai County, Yunnan province, China, with a maximum Mercalli intensity of X (Extreme).

Between 10,000 and 15,000 people are known to have been killed and about another 26,000 are injured.

An earthquake occurred in Tonghai, Yunnan province, China at 01:00:41 local time on 5 January 1970 with a moment magnitude of 7.1 and a maximum Mercalli intensity of X (Extreme). The strike-slip rupture originated on the Red River Fault, which had not experienced an earthquake above magnitude 7 since 1700. At least 10,000 people were killed, making it one of the deadliest in its decade. The tremor caused between US$5 and $25 million in damage, felt over an area of 8,781 km2 (3,390 sq mi). In Hanoi, North Vietnam, almost 483 km (300 mi) from the epicenter, victims left their homes as the rupture rumbled through the city.

Wikipedia source

1970

A Spantax Convair CV-990 Coronado crashes during takeoff from Stockholm Arlanda Airport, killing five people.

Spanish leisure airline (1959–1988)

Spantax S.A. was a Spanish leisure airline headquartered in Madrid that operated from 6 October 1959 to 29 March 1988. Spantax was one of the first Spanish airlines to operate tourist charter flights between European and North American cities and popular Spanish holiday destinations and was considered a major force in developing 20th-century mass tourism in Spain. Its popularity and image faded from the 1970s onward when a series of crashes and incidents revealed safety deficits, which, combined with rising fuel costs and increasing competition, resulted in the company facing severe financial difficulties that led to its demise in 1988.

Wikipedia source

1970

US President Richard Nixon announces the Space Shuttle program.

President of the United States from 1969 to 1974

Richard Milhous Nixon was the 37th president of the United States, serving from 1969 until his resignation in 1974. A member of the Republican Party, he represented California in both houses of the United States Congress before serving as the 36th vice president under President Dwight D. Eisenhower from 1953 to 1961. His presidency saw the reduction of U.S. involvement in the Vietnam War, détente with the Soviet Union and China, the Apollo 11 Moon landing, and the establishment of the Environmental Protection Agency and Occupational Safety and Health Administration. Nixon's second term ended early when he became the only U.S. president to resign from office, as a result of the Watergate scandal.

Wikipedia source

1972

The Tasman Bridge in Tasmania, Australia, is struck by the bulk ore carrier Lake Illawarra, killing twelve people.

Highway bridge over the River Derwent in Hobart, Tasmania, Australia

The Tasman Bridge is a prestressed concrete girder bridge carrying the Tasman Highway over the River Derwent in Hobart, Tasmania, Australia. When it opened on 29 March 1965, it was the longest prestressed concrete bridge in Australia, with a total length of 1,396 metres (4,580 ft), including approaches. The bridge provides a vital link between the Hobart central business district on the western shore and the City of Clarence on the eastern shore. Averaging around 73,000 vehicle crossings per day, it carries the highest traffic volume of any road section in Tasmania. It features five lanes of traffic, including a central reversible lane, and grade-separated shared-use walkways on both sides, with ramp upgrades for improved access and cyclists completed in 2010.

Wikipedia source

1975

The Khmer Rouge announce that the new Constitution of Democratic Kampuchea is ratified.

Members of the Communist Party of Kampuchea

Khmer Rouge is the name that was popularly given to members of the Communist Party of Kampuchea (CPK), and by extension to Democratic Kampuchea, which ruled Cambodia between 1975 and 1979. The name was coined in the 1960s by Norodom Sihanouk to describe his country's heterogeneous, communist-led dissidents, with whom he allied after the 1970 Cambodian coup d'état.

Wikipedia source

1976

The Troubles: Gunmen shoot dead ten Protestant civilians after stopping their minibus at Kingsmill in County Armagh, Northern Ireland, UK, allegedly as retaliation for a string of attacks on Catholic civilians in the area by Loyalists, particularly the killing of six Catholics the night before.

1960s–1998 conflict in Northern Ireland

The Troubles were an ethno-nationalist conflict in Northern Ireland that lasted for about 30 years from the late 1960s to 1998. Also known internationally as the Northern Ireland conflict, it began in the late 1960s and is usually deemed to have ended with the Good Friday Agreement of 1998. Although the Troubles mostly took place in Northern Ireland, at times violence spilled over into parts of the Republic of Ireland, England, and mainland Europe.

Wikipedia source

1976

Georgian forces enter Tskhinvali, the capital of South Ossetia, Georgia, opening the 1991–92 South Ossetia War.

Country in Eastern Europe and West Asia

Georgia is a country in the Caucasus region on the coast of the Black Sea. It is located at the intersection of Eastern Europe and West Asia, and is today 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 all of their neighboring nations and primarily speak Georgian, a Kartvelian language that has no relation to any other language family in the world.

Wikipedia source

1991

Somali Civil War: The United States Embassy to Somalia in Mogadishu is evacuated by helicopter airlift days after the outbreak of violence in Mogadishu.

Ongoing civil war in East Africa

The Somali Civil War is an ongoing civil war that is taking place in Somalia. It grew out of resistance to the military junta which was led by Siad Barre during the 1980s. From 1988 to 1990, the Somali Armed Forces began engaging in combat against various armed rebel groups, including the Somali Salvation Democratic Front in the northeast, the Somali National Movement in the Somaliland War of Independence in the northwest, and the United Somali Congress in the south. The clan-based armed opposition groups overthrew the Barre government in 1991.

Wikipedia source

1991

The oil tanker MV Braer runs aground on the coast of the Shetland Islands, spilling 84,700 tons of crude oil.

Oil tanker which ran aground during a storm off Shetland, Scotland in 1993

MV Braer was an oil tanker which ran aground during a storm off Shetland, Scotland, in January 1993. The tanker spilled 84,800 tons of crude oil and 1,600 tons of heavy fuel oil into Quendale Bay. The event is considered the worst marine oil spill in Scottish history.

Wikipedia source

1993

A suicide bombing at the Tel Aviv central bus station kills 23 people and injures over 100 more.

2003 suicide bombings in Tel Aviv, Israel

The Tel Aviv central bus station massacre was an attack which occurred on January 5, 2003 in which two Palestinian suicide bombers blew themselves up outside the Tel Aviv Central Bus Station in Tel Aviv, Israel, killing 23 civilians and injuring over 100.

Wikipedia source

2003

A launch of the communication satellite GSAT-14 aboard the GSLV MK.II D5 marks the first successful flight of an Indian cryogenic engine.

Indian communications satellite

GSAT-14 is an Indian communications satellite launched in January 2014. It replaced the GSAT-3 satellite, which was launched in 2004. GSAT-14 was launched by a Geosynchronous Satellite Launch Vehicle Mk.II, which incorporated an Indian-built cryogenic engine on the third stage.

Wikipedia source

2014

Kazakh President Kassym-Jomart Tokayev dismisses Prime Minister Asqar Mamin and declares state of emergency over the 2022 Kazakh unrest.

President of Kazakhstan since 2019

Kassym-Jomart Kemeluly Tokayev is a Kazakh politician and diplomat who has served as the second president of Kazakhstan since 2019. He previously served as Prime Minister from 1999 to 2002 and as Chairman of the Senate from 2007 to 2011 and again from 2013 to 2019. Tokayev also held the position of Director-General of the United Nations Office at Geneva from 2011 to 2013.

Wikipedia source

2022

The 2023 Sinaloa unrest begins.

Cartel violence in Mexico

The 2023 Sinaloa unrest or The Second Black Thursday began on January 5, 2023, following the arrest of Ovidio Guzmán, son of jailed drug lord Joaquín 'El Chapo' Guzmán, sparking a wave of violence in the state of Sinaloa. In retaliation for the arrest of Ovidio Guzmán, cartel members blocked highways with burning vehicles and began attacks against the armed forces. The Culiacán International Airport was closed after gunfire was opened on two planes. On January 13, the Mexican Secretary of the Interior Adán Augusto López Hernández declared that "order has been reestablished" in Sinaloa.

Wikipedia source

2023

Alaska Airlines Flight 1282 makes an emergency landing at Portland International Airport after a door plug blows off the Boeing 737 MAX 9 operating the flight.

There are no fatalities, but the accident prompts the 737 MAX to be grounded and renews scrutiny on Boeing's manufacturing and design issues.

Alaska Airlines Flight 1282 was a scheduled domestic passenger flight operated by Alaska Airlines from Portland International Airport in Portland, Oregon, to Ontario International Airport in Ontario, California. Shortly after takeoff on January 5, 2024, a door plug on the Boeing 737 MAX 9 aircraft blew out, causing an uncontrolled decompression of the aircraft.

Wikipedia source

2024

January 5 in History

2005 — The dwarf planet Eris is discovered by Palomar Observatory-based astronomers, later motivating the International Astronomical Union (IAU) to define the term planet for the first time

More major events on January 5

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