January 1 – The piece Longplayer begins. It lasts 1,000 years, finishing on December 31, 2999.
January 3–10 – Israel and Syria hold inconclusive peace talks.
January 5–8 – The 2000 al-Qaeda Summit of several high-level al-Qaeda members (including 2 9/11 American Airlines hijackers) is held in Kuala Lumpur, Malaysia.
January 6 – The last natural Pyrenean ibex is found dead, apparently killed by a falling tree.
January 10 – America Online announces an agreement to purchase Time Warner for $162 billion (the largest-ever corporate merger).
January 11 – The armed wing of the Islamic Salvation Front concludes its negotiations with the government for an amnesty and disbands in Algeria (see Algerian Civil War#GIA destroyed, GSPC discontinues).
A United Nations tribunal sentences 5 Bosnian Croats to up to 25 years in prison for the 1993 killing of over 100 Bosnian Muslims in a Bosnian village.
The Dow Jones Industrial Average closes at 11,722.98 (at the peak of the Dot-com bubble).
January 18 – The Tagish Lake meteorite impacts the Earth.
January 24 – God's Army, a Karen militia group led by twins Johnny and Luther Htoo, takes 700 hostages at a Thai hospital near the Burmese border.
January 30 – Kenya Airways Flight 431 crashes off the coast of Ivory Coast into the Atlantic Ocean, killing 169.
Alaska Airlines Flight 261 crashes off the California coast into the Pacific Ocean, killing 88.
Dr. Harold Shipman is found guilty of murdering 15 patients between 1998 at Hyde, Greater Manchester, and sentenced to life imprisonment.
February 4 – German extortionist Klaus-Peter Sabotta is jailed for life for attempted murder and extortion, in connection with the sabotage of German railway lines.
February 6 – Tarja Halonen is elected the first female president of Finland.
February 7 – Stipe Mesić is elected president of Croatia.
February 8 – Radio broadcaster Bob Collins' plane collides with that of a student pilot over Zion, Illinois.
February 9 – Torrential rains in Africa lead to the worst flooding in Mozambique in 50 years, which lasts until March and kills 800 people.
February 13 – The final original Peanuts comic strip is published, following the death of its creator, Charles M. Schulz.
February 21 – UNESCO holds the inaugural celebration of International Mother Language Day.
February 29 – a rare century leap year date occurs. Usually, 00 years are not leap years due to not being exactly divisible by 400. 2000 is the first such year to have a February 29 since the year 1600, making it only the second such occasion since the Lilian rule was introduced in the late 16th century. The next such leap year will not occur until 2400.
The Constitution of Finland is rewritten.
Jorge Batlle, a son, grandnephew and great-grandson of former presidents, is sworn in as President of Uruguay.
March 4 – The PlayStation 2 is released in Japan. Several months later, it becomes the best-selling game console of all time.
March 8 – Tokyo train disaster: A sideswipe collision of 2 Tokyo Metro trains kills 5 people.
March 10 – The NASDAQ Composite Index reaches an all-time high of 5,048. Two weeks later, the NASDAQ-100, S&P 500, and Wilshire 5000 reach their peaks prior to the Dot-com bubble, ending a bull market run that lasted over 17 years.
Pope John Paul II apologizes for the wrongdoings by members of the Roman Catholic Church throughout the ages.
A Zenit-3SL launch fails due to a software bug.
March 13 – The United States dollar becomes the official currency of Ecuador, replacing the Ecuadorian sucre.
Pope John Paul II begins the first official visit by a Roman Catholic pontiff to Israel.
The U.S. Supreme Court rules the FDA lacks authority to regulate tobacco as an addictive drug, throwing out the Clinton Administration's main anti-smoking initiative.
Vladimir Putin is elected President of Russia.
The Seattle Kingdome is demolished by implosion.
March 27 – The Phillips explosion of 2000 kills 1 and injures 71 in Pasadena, Texas.
March 28 – A tornado hits Fort Worth, Texas, damaging the downtown area.
April 1 – The 2000 United States Census begins. 281,421,906 residents are living in the United States.
April 3 – United States v. Microsoft Corp.: Microsoft is ruled to have violated United States antitrust laws by keeping "an oppressive thumb" on its competitors.
April 16 – An American anti-globalization protest is held in Washington, D.C.
April 17 – Tuanku Syed Sirajuddin becomes Raja of Perlis.
April 22 – In a predawn raid, federal agents seize 6-year-old Elián González from his relatives' home in Miami and fly him to his Cuban father in Washington, D.C., ending one of the most publicized custody battles in U.S. history.
April 30 – Canonization of Faustina Kowalska in the presence of 200,000 people and the first Divine Mercy Sunday celebrated worldwide.
May – Sierra Leone Civil War: The British Armed Forces launch Operation Palliser to support the Sierra Leone government to counter the Revolutionary United Front.
May 1 – A new class of composite material is fabricated, which has a combination of physical properties never before seen in a natural or man-made material.
May 3 – In San Antonio, Texas, computer pioneer Datapoint files for Chapter 11 bankruptcy.
After originating in the Philippines, the ILOVEYOU computer virus spreads quickly throughout the world.
An earthquake hits Banggai, Indonesia, leaving 54 dead.
May 5 – A rare conjunction of 7 celestial bodies (Sun, Moon, planets Mercury–Saturn) occurs during the new moon.
The billionth living person in India is born.
Effective date of Canada's first modern-day treaty – The Nisga'a Final Agreement.
May 12 – The Tate Modern Gallery opens in London.
A fireworks factory disaster in Enschede, Netherlands, kills 23.
Millennium Force opens at Cedar Point amusement park in Sandusky, Ohio as the world's tallest and fastest roller coaster.
May 16 – The Grand National Assembly of Turkey elects Ahmet Necdet Sezer as the tenth President of Turkey.
May 17 – A bomb in Glorietta Mall in Makati City, Philippines injures 13.
May 20 – Taiwanese (ROC) president Chen Shui-bian makes the Four Noes and One Without pledge to Taiwan.
May 25 – Israel withdraws IDF forces from southern Lebanon after 22 years.
June 4 – The 7.9 Mw Enggano earthquake shakes southwestern Sumatra with a maximum Mercalli intensity of VI (Strong). One-hundred and three people were killed and 2,174–2,585 were injured.
June 5 – 405 The Movie, the first short film widely distributed on the Internet, is released.
June 13 – South Korean President Kim Dae-jung visits North Korea to participate in the first North-South presidential summit.
June 17 – A centennial earthquake (6.5 on the Richter scale) hits Iceland on its national day.
June 21 – Section 28, a law preventing the promotion of homosexuality, is repealed by the Scottish Parliament.
June 26 – A preliminary draft of genomes, as part of the Human Genome Project, is finished. It is announced at the White House by President Clinton.
June 28 – Elián González returns to Cuba with his father, Juan Miguel González, ending a protracted custody battle.
June 30 – At the Roskilde Festival near Copenhagen, Denmark, 9 die and 26 are injured on a set while the rock group Pearl Jam performs.
July 1 – The Øresund Bridge between Denmark and Sweden is officially opened tor traffic.
France defeats Italy 2-1 after extra time in the final of the European Championships, becoming the first team to win the World Cup and European Championships consecutively.
Vicente Fox is elected President of Mexico, as candidate of the rightist PAN (National Action Party), ending 71 years of PRI (Institutional Revolutionary Party) rule.
July 7 – The draft assembly of Human Genome Project announced at the White House by President Bill Clinton, Francis Collins, and Craig Venter.
In southern Nigeria, a leaking petroleum pipeline explodes, killing about 250 villagers who were scavenging gasoline.
Bashar al-Assad is confirmed as Syria's leader in a national referendum following the death of his father, Hafez al-Assad.
July 13–25 – Israel's prime minister Ehud Barak and PLO leader Yasser Arafat meet at Camp David, but fail to reach an agreement.
July 14 – A powerful solar flare, later named the Bastille Day event, causes a geomagnetic storm on Earth.
July 18 – Alex Salmond resigns as the leader of the Scottish National Party.
July 21–23 – G-8 Nations hold their 26th Annual Summit; issues include AIDS, the 'digital divide', and halving world poverty by 2015.
July 25 – Air France Flight 4590, a Concorde aircraft, crashes into a hotel in Gonesse just after takeoff from Paris, killing all 109 aboard and 4 in the hotel.
July 30 – Venezuela's president Hugo Chávez is reelected with 59% of the vote.
July 31 – August 3 – The Republican National Convention in Philadelphia nominates Governor of Texas George W. Bush for President of the United States and Dick Cheney for Vice President.
August 3 – Rioting erupts on the Paulsgrove estate in Portsmouth, Hampshire, England, after more than 100 people besiege the home of a block of flats allegedly housing a convicted paedophile. This is the latest vigilante violence against suspected sex offenders since the beginning of the "naming and shaming" anti-paedophile campaign by the tabloid newspaper News of the World.
August 7 – DeviantART is launched.
August 8 – The Confederate submarine H. L. Hunley is raised to the surface after 136 years on the ocean floor.
August 12 – The Russian submarine Kursk sinks in the Barents Sea during one of the largest Russian naval exercises since the 1991 dissolution of the Soviet Union, resulting in the deaths of all 118 men on board.
Tsar Nicholas II and his family are canonized by the synod of the Russian Orthodox Church.
Dora the Explorer, one of Nickelodeon's most popular shows, debuts.
August 14–17 – The Democratic National Convention in Los Angeles nominates U.S. Vice President Al Gore for President and Senator Joe Lieberman for Vice President.
August 23 – John Anthony Kaiser, a Roman Catholic priest, is murdered in Morendat, Kenya.
August 24 – The Nintendo GameCube is revealed.
September 5 – Tuvalu joins the United Nations.
September 6 – The last wholly Swedish-owned arms manufacturer, Bofors, is sold to American arms manufacturer United Defense.
September 6–8 – World leaders attend the Millennium Summit at U.N. Headquarters.
September 7–14 – The UK fuel protests take place, with refineries blockaded, and supply to the country's network of petrol stations halted.
Albania officially joins the World Trade Organization.
The United Nations Millennium Declaration is made in New York.
September 13 – Steve Jobs introduces the public beta of Mac OS X for US$29.95.
September 15 – October 1 – The 2000 Summer Olympics are held in Sydney, Australia is the last Olympic Games of the 20th century.
Ukrainian journalist Georgiy Gongadze is last seen alive; this day is taken as the commemoration date of his death.
Peru's president Alberto Fujimori calls for new elections in which he will not run.
The Greek ferry Express Samina sinks off the coast of the island of Paros; 80 out of a total of over 500 passengers perish in one of Greece's worst sea disasters.
Anti-globalization protests in Prague (some 15,000 protesters) turn violent during the IMF and World Bank summits.
September 28 – Israeli opposition leader Ariel Sharon visits the Temple Mount, protected by a several-hundred-strong Israeli police force. Palestinian riots erupt, leading to a full-fledged armed uprising (called the Al-Aqsa Intifada by sympathizers and the Oslo War by opponents).
September 29 – The HM Prison Maze in Northern Ireland is closed.
October 5 – President Slobodan Milošević leaves office after widespread demonstrations throughout Serbia.
October 6 – The last Mini is produced in Longbridge.
Jim Wallace becomes Acting First Minister of Scotland.
250 million US gallons (950,000 m3) of coal sludge spill in Martin County, Kentucky (considered a greater environmental disaster than the Exxon Valdez oil spill).
October 12 – In Aden, Yemen, USS Cole is badly damaged by two Al-Qaeda suicide bombers, who place a small boat laden with explosives alongside the United States Navy destroyer, killing 17 crew members and wounding at least 39.
October 21 – Fifteen Arab leaders convene in Cairo, Egypt, for their first summit in 4 years; the Libyan delegation walks out, angry over signs the summit will stop short of calling for breaking ties with Israel.
October 22 – The Mainichi Shimbun newspaper exposes Japanese archeologist Shinichi Fujimura as a fraud; Japanese archaeologists had based their treatises on his findings.
October 23 – Madeleine Albright holds talks with North Korean dictator Kim Jong-il.
October 26 – Pakistani authorities announce that their police have found an apparently ancient mummy of a Persian Princess in the province of Balochistan. Iran, Pakistan and the Taliban all claim the mummy until Pakistan announces it is a modern-day fake on April 17, 2001.
Pacific Islands Forum (PIF).
Henry McLeish becomes First Minister of Scotland.
October 30 – This is the final date during which there is no human presence in space; on October 31, Soyuz TM-31 launches, carrying the first resident crew to the International Space Station. The ISS has been continuously crewed since.
October 31 – Singapore Airlines Flight 006 collides with construction equipment in the Chiang Kai Shek International Airport, resulting in 83 deaths.
November – Iraq disarmament crisis: Iraq rejects new U.N. Security Council weapons inspections proposals.
November 1 - Serbia is admitted to the United Nations as the 190th member.
November 2 – The first resident crew enters the International Space Station.
November 3 – Widespread flooding occurs throughout England and Wales after days of heavy rain.
In London, a criminal gang raids the Millennium Dome to steal the Millennium Star diamond, but police surveillance catches them in the act.
Hillary Clinton is elected to the United States Senate, becoming the first First Lady of the United States to win public office.
United States presidential election, 2000: Republican Governor of Texas George W. Bush defeats Democratic Vice President Al Gore in the U.S. presidential election but there is a miscount in Florida resulting in a recount of the votes.
November 11 – Kaprun disaster, Austria: A funicular fire in an Alpine tunnel kills 155 skiers and snowboarders.
November 15 – A new Indian state called Jharkhand is formed, carving out the South Chhota Nagpur area from Bihar in India.
November 16 – Bill Clinton becomes the first sitting U.S. President to visit Vietnam since the end of the Vietnam War in 1975.
A catastrophic landslide in Log pod Mangartom, Slovenia, kills 7, and causes millions of SIT of damage. It is one of the worst catastrophes in Slovenia in the past 100 years.
Alberto Fujimori is removed from office as president of Peru.
November 27 – Jean Chrétien is re-elected as Prime Minister of Canada, as the Liberal Party of Canada increases its majority in the House of Commons of Canada.
November 28 – Ukrainian politician Oleksandr Moroz touches off the Cassette Scandal by publicly accusing President Leonid Kuchma of involvement in the murder of journalist Georgiy Gongadze. The accusation creates the Orange Revolution in 2004.
December 1 – Vicente Fox takes office as President of Mexico.
December 7 – Kadisoka temple discovered in Sleman, Yogyakarta, Indonesia.
December 12 – Bush v. Gore: The U.S. Supreme Court stops the Florida presidential recount, effectively giving the state, and the Presidency, to George W. Bush.
Disney's Paradise Pier Hotel opens at the Disneyland Resort.
The third and final reactor at the Chernobyl Nuclear Power Plant is shut down and the station is shut down completely.
December 24 – Christmas Eve 2000 Indonesia bombings: At least 18 people are killed in multiple Islamist bomb attacks on churches across Indonesia.
December 25 – The Luoyang Christmas fire at a shopping center in China kills 309 people.
December 30 – Rizal Day bombings: A series of bombs explode in various places in Metro Manila, Philippines, within a span of a few hours, killing 22 and injuring about 100.
January 8 – Noah Cyrus, American actress
Cho Hee-soo, South Korean figure skater
Marrit Steenbergen, Dutch swimmer
Piper Mackenzie Harris, American actress and model
Angélique Abachkina, French dancer
February 5 – Jordan Nagai, American actor
February 10 – Yara Shahidi, American actress
Cho I-hsuan, Taiwanese professional tennis player
Yuto Miyazawa, Japanese singer
Laura Ann Kesling, American actress
Tucker Albrizzi, American actor
February 26 – Alexa Ilacad, Filipina actress
February 28 – Moise Kean, Italian footballer
March 1 – Ava Allan, American actress
Nahida Akter, Bangladeshi cricketer
Julia Kedhammar, Swedish Singer
March 5 – Jack Aitchison, Scottish footballer
March 6 – Jacob Bertrand, American actor
March 10 – Norah Flatley, American artistic gymnast
March 21 – Jace Norman, American actor
March 25 – Christian Traeumer, American actor
March 27 – Sophie Nélisse, Canadian actress
March 31 – Anu Anand, Indian actress
April 1 -- Barbora Seemanová, Czech swimmer
April 6 – CJ Adams, American actor
April 7 – Ivan Ivanov, Bulgarian singer and songwriter
April 9 – Jackie Evancho, American soprano
April 11 – Morgan Lily, American actress
April 14 – Miu Hirano, Japanese table tennis player
April 23 – Chloe Kim, American snowboarder
April 28 – Ellie Carpenter, Australian footballer
May 7 – Maxwell Perry Cotton, American actor
May 15 – Jacob Bragg, Australian runner
May 18 – Ryan Sessegnon, English footballer
May 23 – Evan Bird, Canadian actor
May 24 – Anja Crevar, Serbian swimmer
May 28 – Taylor Ruck, Canadian swimmer
May 30 – Jared S. Gilmore, American actor
June 1 – Willow Shields, American actress
June 2 – Lilimar Hernandez, Venezuelan teen actress
June 5 – Eliias, Swedish singer
June 9 – Laurie Hernandez, American artistic gymnast
June 13 – Penny Oleksiak, Canadian swimmer
June 16 – Bianca Andreescu, Canadian tennis player
June 21 – Natalie Alyn Lind, American actress
Brandon Weaver, American auto racer
Kim Hyun-soo, South Korean actress
July 4 – Rikako Ikee, Japanese swimmer
July 8 – Benjamin Stockham, American actor
July 16 – Jonathan Morgan Heit, American actor
Nico Liersch, German actor
Maria Aragon, Canadian singer
July 18 – Angelina Melnikova, Russian artistic gymnast
July 24 – Marko Calasan, Macedonian computer systems prodigy
Preston Bailey, American actor
Mason Cook, American actor
July 27 – Troy Glass, American actor
July 28 – Emily Hahn, American actress
July 29 – Lino Facioli, Brazilian actor
August 3 – Landry Bender, American actress
August 5 – Augie Isaac, American actor
August 8 – Félix Auger-Aliassime, Canadian tennis player
August 24 – Griffin Gluck, American actor
August 25 – Vincenzo Cantiello, Italian singer
August 26 – Noah Ryan Scott, Canadian actor
August 27 – Tatsuomi Hamada, Japanese actor and model
August 28 – Jaylen Arnold, American activist, philanthropist, and actor
September 5 – Ceren Akkaya, Turkish footballer
Frankie Jonas, American actor
Ahn Do-gyu, South Korean actor
October 6 – Isobelle Molloy, British actress
Aedin Mincks, American actor
Dima Bashar, Palestinian-Jordanian singer
October 11 – Hayden Byerly, American actor
October 15 – David Rawle, Irish actor
October 31 – Willow Smith, American actress and singer
November 2 – Alphonso Davies, Canadian football player
November 8 – Jade Pettyjohn, American teen actress
November 10 – Mackenzie Foy, American model and actress
November 20 – Connie Talbot, British singer
November 21 – Megan Roberts, Canadian artistic gymnast
December 12 – Princess Purnika of Nepal
December 24 – Ethan Bortnick, American musician
December 26 – Isac Elliot, Finnish singer
Nat Adderley, American jazz musician (b. 1931)
Patrick O'Brian, British writer (b. 1914)
January 4 – Diether Krebs, German actor, cabaret artist and comedian. (b. 1947)
Gary Albright, American professional wrestler (b. 1963)
Makhmud Esambayev, Russian actor and dancer (b. 1924)
January 8 – Fritz Thiedemann, German equestrian and show jumper (b. 1918)
January 10 – Sam Jaffe, American film producer (b. 1901)
Dan Kemp, American actor (b. 1927)
Bob Lemon, American baseball player and manager (b. 1920)
January 15 – Željko Ražnatović, Serbian mobster and paramilitary leader (b. 1952)
January 18 – Frances Drake, American actress (b. 1912)
Bettino Craxi, 45th Prime Minister of Italy (b. 1934)
Hedy Lamarr, Austrian actress (b. 1914)
January 20 – Izabella Yurieva, Russian singer (b. 1899)
January 24 – Rex Nelon, American Southern gospel singer (b. 1932)
January 26 – Don Budge, American tennis player (b. 1915)
Claude Autant-Lara, French film director (b. 1901)
Ward Cornell, Canadian radio/TV broadcaster & educator (b. 1924)
Doug Henning, Canadian magician (b. 1947)
Big Pun, American rapper (b. 1971)
Shiho Niiyama, Japanese voice actress (b. 1970)
Bob Collins, American broadcaster (b. 1942)
Sid Abel, Canadian ice hockey player (b. 1918)
Derrick Thomas, American football player (b. 1967)
February 9 – Beau Jack, American boxer (b. 1921)
February 10 – Jim Varney, American actor (b. 1949)
February 11 – Roger Vadim, French film director and producer (b. 1928)
Tom Landry, American football coach (b. 1924)
Charles M. Schulz, American comic strip artist (b. 1922)
Oliver, American pop singer (b. 1945)
Screamin' Jay Hawkins, American rock singer and performer (b. 1929)
February 13 – Anders Aalborg, Canadian politician (b. 1914)
February 19 – Friedensreich Hundertwasser, Austrian artist (b. 1928)
Sir Stanley Matthews, English footballer (b. 1915)
Ofra Haza, Israeli singer (b. 1957)
March 3 – Toni Ortelli, Italian composer and alpinist (b. 1904)
Lolo Ferrari, French actress and dancer (b. 1962)
Roma Mitchell, Australia lawyer and Governor of South Australia (b. 1913)
March 6 -- John Colicos, Canadian actor (b. 1928)
March 7 – Charles Gray, English actor (b. 1928)
March 9 – Jean Coulthard, Canadian composer and music educator (b. 1908)
Will Roberts, British painter (b. 1907)
Alfred Schwarzmann, German gymnast (b. 1912)
March 27 – Ian Dury, British rock musician (b. 1942)
March 28 – Anthony Powell, British author (b. 1905)
March 30 – Rudolf Kirchschläger, Austrian diplomat and 8th President of Austria (b. 1915)
April 2 – Tommaso Buscetta, Italian mafioso informant (b. 1928)
April 3 – Terence McKenna, American writer, philosopher, writer and entheogen advocate (b. 1946)
April 4 – Derek Allhusen, British equestrian (b. 1914)
April 5 – Lee Petty, American race-car driver (b. 1914)
April 6 – Habib Bourguiba, 1st President of Tunisia (b. 1903)
April 8 – Bernie Grant, British politician (b. 1944)
Rabah Bitat, Algerian politician and Interim President of Algeria (b. 1925)
Larry Linville, American actor (b. 1939)
April 11 – Diana Darvey, British actress, singer and dancer (b. 1945)
April 14 – Phil Katz, American computer programmer (b. 1962)
April 15 – Edward Gorey, American writer and illustrator (b. 1925)
April 25 – David Merrick, American stage producer (b. 1911)
April 29 – Phạm Văn Đồng, 2nd Prime Minister of Democratic Republic of Vietnam (b. 1906)
Steve Reeves, American actor and bodybuilder (b. 1926)
Jukka Tapanimäki, Finnish game programmer (b. 1961)
May 2 – Sundar Popo, Indo-Trinidadian chutney musician (b. 1943)
May 3 -- Júlia Báthory, Hungarian glass designer (b. 1901)
May 7 – Douglas Fairbanks, Jr., American actor (b. 1909)
May 8 – Maria do Carmo Gerônimo, last Brazilian slave (b. 1871)
Craig Stevens, American actor (b. 1918)
Kaneto Shiozawa, Japanese voice actor (b. 1954)
May 11 – René Muñoz, Cuban actor and screenwriter (b. 1938)
May 12 – Adam Petty, American NASCAR driver (b. 1980)
May 13 – Tomomi Tsuruta, Japanese professional wrestler (b. 1951)
May 14 – Keizō Obuchi, Japanese politician, 54th Prime Minister of Japan (b. 1937)
May 20 – Edward Bernds, American director (b. 1905)
Dame Barbara Cartland, British novelist (b. 1901)
Sir John Gielgud, British actor (b. 1904)
May 25 – Francis Lederer, French film and stage actor (b. 1899)
Maurice Richard, Canadian hockey player (b. 1921)
Kazimierz Leski, Polish engineer, fighter pilot, and counter-intelligence officer (b. 1912)
Erich Mielke, German secret police official (b. 1907)
May 30 – Doris Hare, British actress (b. 1905)
Petar Mladenov, Bulgarian diplomat and 1st President of Bulgaria (b. 1936)
Tito Puente, American jazz musician (b. 1923)
Hafez al-Assad, Syrian statesman, politician and general, 18th President of Syria (b. 1930)
Frank Patterson, Irish tenor (b. 1938)
June 14 – Robert Trent Jones, English-born golf course designer (b. 1906)
June 16 – Empress Kōjun of Japan (b. 1903)
June 17 – Ismail Mahomed, South African and Namibian Chief Justice (b. 1931)
June 19 – Noboru Takeshita, Japanese politician, 46th Prime Minister of Japan (b. 1924)
June 21 – Alan Hovhaness, American composer (b. 1911)
June 24 – David Tomlinson, English actor (b. 1917)
June 27 – Pierre Pflimlin, French politician and Prime Minister of France (b. 1907)
June 28 – Sid Ahmed Rezala, French serial killer (b. 1979)
June 29 – Vittorio Gassman, Italian actor (b. 1922)
July 1 – Walter Matthau, American actor (b. 1920)
July 6 – Lazar Koliševski, 2nd President of Yugoslavia (b. 1914)
July 7 – James C. Quayle, American newspaper publisher (b. 1921)
July 8 – FM-2030, Transhumanist philosopher (b. 1930)
Vakkom Majeed, Indian freedom fighter and Legislative member (b. 1909)
Denis O'Conor Don, hereditary chief of the O'Conor Don sept of Ireland (b. 1912)
July 11 – Robert Runcie, Archbishop of Canterbury (b. 1921)
July 12 – Charles Merritt, Canadian Army officer (b. 1908)
July 15 – Kalle Svensson, Swedish footballer (b. 1925)
July 21 – Yosef Qafih, Israeli rabbi (b. 1917)
July 28 – Abraham Pais, American physicist (b. 1918)
July 29 – René Favaloro, Argentinian cardiologist (b. 1923)
August 3 – Isolina Ferre, Puerto Rican Roman Catholic nun and blessed (b. 1914)
Sir Alec Guinness, British actor and writer (b. 1914)
Otto Buchsbaum, German writer and ecological activist (b. 1920)
Sir Robin Day, British political broadcaster (b. 1923)
Don A. Jones, American admiral and civil engineer (b. 1912)
August 8 – K. Kailasanatha Kurukkal, Researcher, Writer and Professor of Jaffna, Sri Lanka (b. 1921)
August 9 – John Harsanyi, Hungarian-born economist (b. 1920)
Loretta Young, American actress (b. 1913)
Dave Edwards, American musician (b. 1941)
August 13 – Nazia Hassan, Pakistani singer (b. 1964)
August 19 – Bineshwar Brahma, Bodo activist and leader (b. 1946)
August 20 – Bunny Austin, English tennis player (b. 1906)
August 21 – Daniel Lisulo, Zambian politician and Prime Minister of Zambia (b. 1930)
August 22 -- Abulfaz Elchibey, Azerbaijani political figure, 2nd President of Azerbaijan (b. 1938)
Ivan Stambolić, Serbian politician (b. 1936)
Carl Barks, American cartoonist and screenwriter (b. 1901)
Elvera Sanchez, American dancer (b. 1905)
Curt Siodmak, American novelist and screenwriter (b. 1902)
September 14 – Beah Richards, American actress (b. 1920)
September 16 – Georgiy Gongadze, Ukrainian journalist (b. 1969)
September 17 -- Bakht Singh, Indian evangelist (b. 1903)
Anthony Robert Klitz, British artist (b. 1917)
Ann Doran, American actress (b. 1911)
September 22 – Saburō Sakai, Japanese fighter ace (b. 1916)
September 25 – R. S. Thomas, Welsh poet (b. 1913)
September 26 – Richard Mulligan, American actor (b. 1932)
September 27 – Sammy Luftspring, Canadian boxer (b. 1916)
Peter Gennaro, American dancer and choreographer (b. 1919)
Pierre Trudeau, 15th Prime Minister of Canada (b. 1919)
October 3 – Benjamin Orr, American singer-songwriter (b. 1947)
October 4 – Michael Smith, English-born chemist (b. 1932)
October 6 – Richard Farnsworth, American actor (b. 1920)
October 7 – Walter Krupinski, German fighter ace and general (b. 1920)
October 8 – Sheila Holland, English writer (b. 1937)
October 9 – Patrick Anthony Porteous, British recipient of the Victoria Cross (b. 1918)
October 10 -- Sirimavo Bandaranaike, Sri Lankan politician, 2-Time Prime Minister of Ceylon and 2-Time Prime Minister of Sri Lanka (b. 1916)
October 13 – Jean Peters, American actress (b. 1926)
October 14 – Tony Roper, American NASCAR driver (b. 1964)
October 15 – Konrad Emil Bloch, German-born biochemist (b. 1912)
Mel Carnahan, American politician (b. 1934)
Rick Jason, American actor (b. 1923)
October 18 – Julie London, American singer and actress (b. 1926)
October 19 – Charles Perkins, Australian aboriginal activist and soccer player (b. 1936)
October 21 – Reginald Kray, English criminal (b. 1933)
October 22 – Fred Pratt Green, British Methodist minister and hymn writer (b. 1903)
Rodney Anoa'i, American wrestler (b. 1966)
Nils Tapp, Swedish Olympic cross-country skiier (b. 1917)
October 27 – Walter Berry, Austrian bass-baritone (b. 1929)
October 28 – Andújar Cedeño, Dominican baseball player (b. 1969)
October 30 – Steve Allen, American comedian and author (b. 1921)
October 31 – Ring Lardner, Jr., American screenwriter (b. 1915)
November 2 – Eva Morris, last surviving person documented as born in 1885 (b. 1885)
David Brower, American environmental activist (b. 1912)
Jimmie Davis, American singer (b. 1899)
Roger Peyrefitte, French writer and diplomat (b. 1907)
November 6 – L. Sprague de Camp, American writer (b. 1907)
C Subramaniam, Indian politician (b. 1910)
Ingrid of Sweden, Queen consort of Frederick IX of Denmark (b. 1910)
November 10 -- Jacques Chaban-Delmas, French politician, 153rd Prime Minister of France (b. 1915)
November 11 – Hugh Paddick, British actor (b. 1915)
November 16 – DJ Screw, American hip hop DJ (b. 1971)
Sir Cyril Astley Clarke, British physician, geneticist and entomologist (b. 1907)
Christian Marquand, French actor and director (b. 1927)
Emil Zatopek, Czechoslovakian athlete (b. 1922)
November 28 – Liane Haid, Austrian actress (b. 1895)
December 2 – Gail Fisher, American actress (b. 1935)
December 3 – Gwendolyn Brooks, American-writer (b. 1917)
December 6 – Werner Klemperer, American actor (b. 1920)
Paul Avery, American journalist (b. 1934)
Marie Windsor, American actress (b. 1919)
December 18 – Kirsty MacColl, English singer (b. 1959)
John Lindsay, American politician and lawyer, Mayor of New York City (b. 1921)
Roebuck "Pops" Staples, American musician (b. 1914)
Billy Barty, American actor (b. 1924)
Victor Borge, Danish-born comedian and pianist (b. 1909)
December 26 – Jason Robards, American actor (b. 1922)
December 30 – Julius J. Epstein, American screenwriter (b. 1909)
December 31 — Rabbi Binyamin Ze'ev Kahane, Israeli settler leader (b. 1966)
Chemistry – Alan J. Heeger, Alan MacDiarmid, and Hideki Shirakawa
Economics – James Heckman and Daniel McFadden
Literature – Gao Xingjian
Peace – Kim Dae-jung
Physics – Zhores Alferov, Herbert Kroemer, and Jack Kilby
Physiology or Medicine – Arvid Carlsson, Paul Greengard, and Eric Kandel
2000 (MM) was a century leap year starting on Saturday (dominical letter BA) of the Gregorian calendar, the 2000th year of the Common Era (CE) and Anno Domini (AD) designations, the 1000th and last year of the 2nd millennium, the 100th and last year of the 20th century, and the 1st year of the 2000s decade.
2000 was designated as:International Year for the Culture of Peace
World Mathematical Year
Popular culture holds the year 2000 as the first year of the 21st century and the 3rd millennium due to a tendency of grouping the years according to decimal values, as if year zero were counted. According to the Gregorian Calendar, these distinctions fall to the year 2001 because the 1st century was retroactively said to start with year AD 1. Since the calendar does not have year zero, its first millennium spanned from years 1 to 1000 inclusively and its second millennium from years 1001 to 2000 (See more at Millennium).
The year 2000 is sometimes abbreviated as "Y2K" (the "Y" stands for "year", and the "K" stands for "kilo" which means "thousand"). The year 2000 was the subject of Y2K concerns, which are fears that computers would not shift from 1999 to 2000 correctly. However, by the end of 1999, many companies had already converted to new, or upgraded, existing software. Some even obtained Y2K certification. As a result of massive effort, relatively few problems occurred.