Anniversaries in 2026
96 entries reach a round-number anniversary this year. Centenaries first, then fifties, twenty-fives and the rest.
Useful for planning a feature, a commemoration or a social post. Every entry links to its full record and to the date it falls on.
20th anniversary 24
Elizabeth II
Queen Elizabeth II unveils the New Zealand War Memorial in London, United Kingdom, commemorating the loss of soldiers from the New Zealand Army and the British Army.
President of Iran
Iranian president Mahmoud Ahmadinejad announces Iran's claim to have successfully enriched uranium.
Grigori Perelman
Grigori Perelman was awarded the Fields Medal for his proof of the Poincaré conjecture in mathematics but refused to accept the medal.
India national cricket team
India's Irfan Pathan became the first bowler to take a Test cricket hat-trick in the opening over of a match.
Israeli–Palestinian conflict
Israeli-Palestinian conflict: The Israeli Defense Force kill 19 Palestinian civilians in their homes during the shelling of Beit Hanoun.
2006 Mumbai train bombings
Mumbai train bombings: 209 people are killed in a series of bomb attacks in Mumbai, India.
Ellen Johnson Sirleaf
Ellen Johnson Sirleaf is sworn in as Liberia's new president. She becomes Africa's first female elected head of state.
Hezbollah
Hezbollah forces crossed the Israel–Lebanon border and attacked Israeli military positions while firing rockets and mortars at Israeli towns, sparking a five-week war.
Mexican drug war
The first action in the Mexican drug war began as President Felipe Calderón ordered Mexican soldiers and Federal Police units into the state of Michoacán.
Monterrey
In Monterrey, Mexico, a man identified as Diego Santoy Riveroll commits a double murder against two children, followed by an attempted murder of his ex-partner, Erika. The incident is popularly known as the Cumbres case.
National Museum of the Marine Corps
The National Museum of the Marine Corps in Quantico, Virginia is opened and dedicated by U.S. President George W. Bush, who announces that Marine Corporal Jason Dunham will posthumously receive the Medal of Honor.
Sri Lankan civil war
Sri Lankan Civil War: Sri Lankan Tamil politician and former MP S. Sivamaharajah is shot dead at his home in Tellippalai.
Cyclone Glenda
Cyclone Glenda, one of the strongest tropical cyclones in the Australian region makes landfall near Onslow, Western Australia.
Seismic magnitude scales
The 6.7 Mw Kiholo Bay earthquake rocks Hawaii, causing property damage, injuries, landslides, power outages, and the closure of Honolulu International Airport.
Mahmoudiyah, Iraq
In Mahmoudiyah, Iraq, 14-year-old Abeer Qassim Hamza al-Janabi is raped and murdered by five American soldiers of the 502nd Infantry Regiment, who also murder both of her parents and her sister.
2006 Pangandaran earthquake and tsunami
The 7.7 Mw Pangandaran tsunami earthquake severely affects the Indonesian island of Java, killing 668 people, and leaving more than 9,000 injured.
Typhoon Ewiniar (2006)
Typhoon Ewiniar made landfall in South Korea, causing damages across the country amounting to 2.06 trillion won (US$1.4 billion).
Panama Canal expansion project
A Panama Canal expansion proposal is approved by 77.8% of voters in a national referendum.
Saddam Hussein
Saddam Hussein, the former president of Iraq, and his co-defendants Barzan Ibrahim al-Tikriti and Awad Hamed al-Bandar, are sentenced to death in the al-Dujail trial for their roles in the 1982 massacre of 148 Shia Musli
2006 Lebanon War
Lebanon War: A ceasefire takes effect three days after the United Nations Security Council's approval of United Nations Security Council Resolution 1701, formally ending hostilities between Lebanon and Israel.
Mari Alkatiri
Mari Alkatiri, the first Prime Minister of East Timor, resigns after weeks of political unrest.
Lucha libre
Mexican professional wrestler Juana Barraza is arrested in connection with the serial killing of at least ten elderly women.
Ehud Olmert
Ehud Olmert becomes acting Prime Minister of Israel after the incumbent, Ariel Sharon, suffers a second, apparently more serious stroke.
Incidents during the Hajj
A stampede during the Stoning of the Devil ritual on the last day at the Hajj in Mina, Saudi Arabia, kills at least 362 Muslim pilgrims.
10th anniversary 24
2016 Ouagadougou attacks
Thirty-three out of 126 freed hostages are injured and 23 killed in terrorist attacks in Ouagadougou, Burkina Faso on a hotel and a nearby restaurant.
El Chapo
Joaquín Guzmán, widely regarded as the world's most powerful drug trafficker, is recaptured following his escape from a maximum security prison in Mexico.
West Air Sweden Flight 294
West Air Sweden Flight 294 crashes near the Swedish reservoir of Akkajaure; both pilots, the only people on board, are killed.
Sagamihara stabbings
The Sagamihara stabbings occur in Kanagawa Prefecture in Japan. Nineteen people are killed.
January 2016 Istanbul bombing
Ten people are killed and 15 wounded in a bombing near the Blue Mosque in Istanbul.
Taedonggang Brewing Company
The state-owned Taedonggang Brewing Company inaugurated the first beer festival in North Korea.
Paris Agreement
The Paris Agreement, an international treaty on climate change, opened for signature and was signed by 175 parties.
Nimr al-Nimr
Nimr al-Nimr, a prominent Shia cleric in Saudi Arabia, was executed by the Saudi government along with 46 other people.
Kwangmyŏngsŏng-4
North Korea launches Kwangmyŏngsŏng-4 into outer space violating multiple UN treaties and prompting condemnation from around the world.
2016 Kaikōura earthquake
A magnitude 7.8 earthquake strikes Kaikōura, New Zealand, at a depth of 15 km (9 miles), resulting in the deaths of two people.
Prime Minister of the United Kingdom
Prime Minister of the United Kingdom David Cameron resigns, and is succeeded by Theresa May.
2016 Fort McMurray wildfire
The evacuation of nearly 88,000 people began when a wildfire swept through Fort McMurray, Alberta, Canada, and burned for another 14 months, becoming the costliest disaster in Canadian history.
2016 Irkutsk mass methanol poisoning
The first victims of a mass methanol poisoning which eventually killed over 70 inhabitants of Irkutsk, Russia, began arriving at hospitals.
August 2016 Gaziantep bombing
Fifty-four people are killed when a suicide bomber detonates himself at a Kurdish wedding party in Gaziantep, Turkey.
Jimmie Johnson
Jimmie Johnson wins his seventh NASCAR Cup Series championship to tie Richard Petty and Dale Earnhardt for the most all-time.
2016 New York and New Jersey bombings
In the wake of a manhunt, the suspect in a series of bombings in New York and New Jersey is apprehended after a shootout with police.
Van Gogh Museum
Two paintings with a combined value of $100 million are recovered after having been stolen from the Van Gogh Museum in 2002.
Syrian civil war
Syrian civil war: The Syrian Democratic Forces (SDF) launch the Manbij offensive, in order to capture the city of Manbij from the Islamic State of Iraq and the Levant (ISIL).
Hurricane Matthew
In the wake of Hurricane Matthew, the death toll rises to nearly 900.
Ghost Ship warehouse fire
Thirty-six people died when a fire broke out at an illegally converted warehouse in Oakland, California, the deadliest U.S. building fire since 2003.
Steven Joyce
New Zealand politician Steven Joyce is hit by a flung rubber dildo in a Waitangi Day protest.
RVSV-ZEBOV vaccine
A study finds the VSV-EBOV vaccine against the Ebola virus between 70 and 100% effective, making it the first proven vaccine against the disease.
Montreal Protocol
One hundred and ninety-seven nations amend the Montreal Protocol to include a phase-out of hydrofluorocarbons.
Proxima Centauri b
Proxima Centauri b, the closest exoplanet to Earth, is discovered by the European Southern Observatory.
5th anniversary 24
2021 Shiyan pipeline explosion
A gas explosion in Zhangwan district of Shiyan city, in Hubei province of China, kills at least 12 people and wounds over 138 others.
2021 Atlanta spa shootings
Atlanta spa shootings: Eight people are killed and one is injured in a trio of shootings at spas in and near Atlanta, Georgia, U.S. A suspect is arrested the same day.
Hlaingthaya massacre
Burmese security forces kill at least 65 civilians in the Hlaingthaya massacre.
Mexico City Metro
An elevated section of the Mexico City Metro collapsed, killing 26 people and injuring 98 others.
Plymouth
Six people, five victims and the perpetrator are killed in Keyham, Plymouth in the worst mass shooting in the UK since 2010.
Derek Chauvin
Derek Chauvin was found guilty of all charges in the murder of George Floyd by a Minnesota court.
Semeru
Semeru on the Indonesian island of Java erupts, killing at least 68 people.
2021 Oxford High School shooting
A 15-year-old gunman murders four students and injures seven people, including a teacher, in a mass shooting at Oxford High School in Oxford Township, Michigan.
Tatmadaw
Burmese military and security forces commit the Bago massacre, during which at least 82 civilians are killed.
Killing of Daunte Wright
Twenty-year-old Daunte Wright is shot and killed in Brooklyn Center, Minnesota, by officer Kimberly Potter, sparking protests in the city, when the officer mistakes her pistol for her taser.
2021 Boulder shooting
Ten people are killed in a mass shooting in Boulder, Colorado.
Rust shooting incident
A shooting occurs on the set of the film Rust, in which actor Alec Baldwin discharged a prop weapon which had been loaded, killing the director of photography, Halyna Hutchins, and injuring director Joel Souza.
Inspiration4
Inspiration4, the first private orbital crewed spaceflight, is launched from the Kennedy Space Center.
Head of a Bear
Head of a Bear (pictured) sold at auction in London for a total of £8.8 million, a record for a drawing by Leonardo da Vinci.
Trial of Derek Chauvin
State of Minnesota v. Derek Michael Chauvin: Derek Chauvin is found guilty of all charges in the murder of George Floyd by the Fourth Judicial District Court of Minnesota.
2021 Abu Dhabi Grand Prix
At the season-ending Abu Dhabi Grand Prix, Max Verstappen overtook Lewis Hamilton on the final lap to become World Drivers' Champion.
Central America
Fifty-five people are killed and more than 100 injured when a truck with 160 migrants from Central America overturned in Chiapas, Mexico.
Antonov An-26
An Antonov An-26 operating as Petropavlovsk-Kamchatsky Air Flight 251 crashes on approach to Palana Airport, killing all 28 aboard.
2020–2021 US troop withdrawal from Afghanistan
The last remaining American troops leave Afghanistan, ending U.S. involvement in the war.
Juneteenth
Juneteenth National Independence Day is signed into law by President Joe Biden, to become the first federal holiday established since Martin Luther King Jr. Day in 1983.
James Webb Space Telescope
The James Webb Space Telescope is launched.
International Space Station
The International Space Station temporarily spins out of control, moving the ISS 45 degrees out of attitude, following an engine malfunction of Russian module Nauka.
Tampere light rail
The Tampere light rail officially starts operating.
Thomson–East Coast Line
The second phase of the Thomson-East Coast MRT line was opened for service.
1st anniversary 24
American Eagle (airline brand)
American Eagle Flight 5342 collided mid-air with a Sikorsky UH-60 Black Hawk operated by the United States Army and crashed into the Potomac River, killing all 67 people on board both aircraft.
Kočani nightclub fire
A fire breaks out in a nightclub in Kočani, North Macedonia, killing at least 59 people and injuring 155 others.
2025 Canadian ostrich culling controversy
Canadian ostrich cull: The Government of Canada kills 314 ostriches after H5N8 is detected in an ostrich farm in Edgewood, BC.
2025–2026 Iranian protests
Unrest in the form of mass protests erupt across Iran, the largest uprising in the country since the Iranian Revolution.
Bondi Beach shooting
At least 16 people are killed, including one gunman, and 43 injured in a mass shooting during a Hanukkah celebration at Bondi Beach in the deadliest terror incident in Australia.
Israel Defense Forces
Israel Defense Forces kill 15 aid workers in the Rafah paramedic massacre.
Harmony Jets Flight 185
The crash of Harmony Jets Flight 185 killed all eight people on board, including the Libyan Army chief Mohammed al-Haddad in Ankara, Turkey.
Liberation Day tariffs
Liberation Day tariffs: U.S. President Donald Trump announces sweeping worldwide tariffs.
January 2025 Southern California wildfires
A series of wildfires ravage the Greater Los Angeles area, resulting in at least 16 deaths and 13,401 structures destroyed.
2025 Tarasin landslide
A landslide in the Darfur region of Sudan kills over 1000 people.
2025 German federal election
A snap election is held in Germany.
Turkey–Islamic State conflict
Balçova police station shooting: Four people, including the perpetrator are killed an attack on a police station in Turkey.
Andriy Parubiy
Ukrainian politician Andriy Parubiy (pictured) was assassinated in Lviv, Ukraine.
Israel–Somaliland relations
Israel recognises Somaliland as an independent state, becoming the first country to do so.
Lando Norris
British racing driver Lando Norris wins the Formula One World Drivers' Championship in 2025 with McLaren.
French Crown Jewels
Pieces of the French Crown Jewels are successfully stolen during a heist on the Louvre Museum in Paris..
Hurricane Beryl
Hurricane Beryl makes landfall in Texas as a Category 1 hurricane, causing 44 deaths, over 2.7 residents without power, and $28 billion to $32 billion dollars worth of damage.
2025 Kartalkaya hotel fire
A fire at a hotel at the Kartalkaya ski resort in Turkey's Bolu Province results in 78 people killed.
Killing of Yasser Abu Shabab
Yasser Abu Shabab is assassinated near Rafah, Gaza Strip.
2025 Russian drone incursion into Poland
Several Russian drones incur on Polish airspace and are subsequently shot down, marking the first time a NATO member has engaged Russian military assets.
2025 Somerset–London tornado
A devastating EF4 tornado kills nineteen people in Southeast Kentucky, hitting the towns of Somerset and London.
Air India Flight 171
Air India Flight 171 (wreckage pictured) crashed shortly after take-off in Ahmedabad, India, killing 260 people.
2025 St. Louis tornado
A catastrophic EF3 tornado kills five people and causes over $1 billion in damages in St. Louis, MO.
Politics of Jordan
The Government of Jordan officially announces the launch of the Amra City development project during a site visit by the Prime Minister.
About anniversaries
What anniversaries fall in 2026?
Every event on this site whose year is a round number of years before 2026 — 10, 25, 50, 100 and so on — is listed here with its date.
Which numbers count as a round anniversary?
One, five, every ten up to a hundred, every twenty-five, and every fifty after that. The list is grouped largest first.
How do I find the anniversary of a specific event?
Open the event page. It shows how many years ago it happened and flags a round-number anniversary when there is one.
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