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Commemoration observances

Commemorative dates that mark people, events or shared historical memory.

Curated facet guide

About this facet

Commemoration pages focus on remembering people, events, institutions or turning points. Tone should match the event: some are solemn, some civic and some celebratory.

Scope note: Commemorative importance and present-day legal holiday status are separate facts and are not inferred from one another.
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Civic Remembrance History 45 sharedCelebrations Social 12 sharedCivic Law Rights 3 shared
61 records

Authority records

Source-backedFixed Annual

Abai Day

10 August · Kazakhstan commemorative date

Government of Kazakhstan

Source-backedHistorical Legacy

Amnesty International founding / Appeal for Amnesty anniversary

28 May anniversary of the 1961 Appeal for Amnesty launch · Amnesty International organizational-history anniversary; not a formally designated civic holiday

Amnesty International’s archive preserves the Appeal for Amnesty 1961 document and its history identifies the 28 May 1961 Observer article as the movement’s launch. The inventory title is t…

Source-backedFixed Annual

Anexión del Partido de Nicoya

25 July annually · Costa Rica; national commemoration of the Annexation of the Partido de Nicoya

Costa Rica’s Ministry of Public Education marks 25 July as the anniversary of the Annexation of the Partido de Nicoya.

Source-backedHistorical Legacy

Anniversary of the Ratification of the 1783 Treaty of Paris

14 January for the anniversary of the 1784 U.S. ratification · U.S. historical commemoration of Treaty of Paris ratification

The White House issued a 14 January 2026 presidential message on the anniversary of ratification of the 1783 Treaty of Paris, and Maryland State Archives records the treaty’s ratification i…

Source-backedFixed Annual

Anniversary of Vietnam’s August Revolution

19 August annually · Vietnam national historical commemoration

Vietnam News Agency’s current 2026 coverage explicitly marks 19 August 2026 as the 81st anniversary of the August Revolution of 19 August 1945.

Source-backedEdition Specific

Appomattox surrender anniversary / Surrender and Freedom Day commemoration

9 April anniversary; NPS 2026 programs ran 8–12 April with 9 April marking the 161st anniversary · U.S. Civil War historical commemoration centered on Appomattox Court House National Historical Park

The National Park Service documents the 9 April 1865 surrender and runs an annual Surrender and Freedom Day anniversary program. “Appomattox Day” is treated as an inventory shorthand, not a…

Source-backedEdition Specific

Battle of the Alamo anniversary / Dawn at the Alamo commemoration

6 March anniversary; 190th anniversary in 2026 · Texas historical commemoration centered on the Alamo

The Alamo’s official 2026 commemoration program marks 6 March as the anniversary of the 1836 Battle of the Alamo, including Dawn at the Alamo and memorial events.

Source-backedFixed Annual

Black Press Day

16 March annually; Black Press Week ran 16–20 March 2026 and Howard’s 2026 convening was 18 March · U.S. Black press history and journalism commemoration

NNPA Fund material places Black Press Week 2026 on 16–20 March around the anniversary of Freedom’s Journal, first published 16 March 1827; Howard University hosted Black Press Day 2026 on 1…

Source-backedFixed Annual

Bonfire Night

5 November · United Kingdom cultural observance associated with the Gunpowder Plot; not a UK bank holiday

UK government material identifies Bonfire Night on 5 November and provides event/fireworks-law context.

Source-backedEdition Specific

Bounty Day

8 June in 2026 · Norfolk Island public holiday and Pitcairn-descendant heritage commemoration

Norfolk Island Regional Council publishes Bounty Day public-holiday information and community messages for the 2026 observance.

Source-backedFixed Annual

Bunker Hill Day

17 June; Suffolk County, Massachusetts legal-holiday status · Suffolk County, Massachusetts / historical legal-holiday designation

Massachusetts General Laws include Bunker Hill Day on 17 June as a legal holiday with respect to Suffolk County only, while also specifying that public agencies remain open.

Source-backedFixed Annual

Chester Greenwood Day

21 December annually in Maine · Maine statutory commemorative day honoring inventor Chester Greenwood; “Earmuff” in the canonical page title is descriptive rather than the statutory title

Maine law designates 21 December as Chester Greenwood Day in honor of the Farmington inventor associated with ear protectors/earmuffs.

Source-backedFixed Annual

César Chávez Day

31 March · California state commemoration

Governor of California

Source-backedEdition Specific

Day of the Baptism of Kyivan Rus–Ukraine

15 July in 2026 · Ukraine / state and historical-religious commemoration

The President of Ukraine’s official 15 July 2026 address identifies the Day of the Baptism of Kyivan Rus–Ukraine alongside Ukrainian Statehood Day.

Source-backedHistorical Legacy

Decoration Day, historical predecessor of Memorial Day

Historically 30 May beginning with the 1868 national observance; modern U.S. Memorial Day is the last Monday in May · U.S. historical remembrance tradition for war dead

The National Park Service documents the first official national Decoration Day on 30 May 1868 and its evolution into Memorial Day.

Source-backedFixed Annual

Día de la Dignidad Nacional (Bolivia)

17 October · Bolivian national civic/historical commemoration established in relation to the events of October 2003

Bolivia’s Ministry of Foreign Affairs documents 17 October as Día de la Dignidad Nacional and records its establishment by law in 2013.

Source-backedRule Based Annual

Día de las Mujeres y Hombres Próceres de Puerto Rico

Third Monday in February · Puerto Rico statutory historical commemoration

Puerto Rico’s Office of Management and Budget legal library lists Law 111-2014, as amended, establishing the third-Monday-in-February Día de las Mujeres y Hombres Próceres de Puerto Rico.

Source-backedFixed Annual

Día de Lempira / Día de la Identidad Nacional

20 July annually · Honduras national civic commemoration

Honduras education authorities identify 20 July as Día de la Identidad Nacional in memory of Cacique Lempira, while the official La Gaceta archive records Decree No. 80-96 declaring 20 July…

Source-backedFixed Annual

Elizabeth Peratrovich Day

16 February annually in Alaska · Alaska state-designated civil-rights commemoration

Alaska’s official designated-days register lists 16 February as Elizabeth Peratrovich Day under state law, and the Governor of Alaska issued a current 2026 proclamation for the observance.

Source-backedFixed Annual

Evacuation Day

17 March · Suffolk County, Massachusetts, United States — legal-holiday designation with statutory qualifications

Massachusetts General Laws, Part I, Title I, Chapter 4, §7

Source-backedFixed Annual

Francisco Morazán birth anniversary / Honduran Soldier's Day

3 October annually · Honduran civic and military commemoration tied to Francisco Morazán’s birth anniversary

Honduras’s Secretariat of National Defense states that the civic calendar marks 3 October as Honduran Soldier’s Day on the anniversary of Francisco Morazán’s birth.

Source-backedFixed Annual

Fundación de Panamá la Vieja / Foundation of Panama Viejo

15 August annually · Panama City historical and local-holiday context

Panamanian education and municipal cultural sources identify 15 August 1519 as the foundation date of Panamá la Vieja and commemorate the anniversary locally.

Source-backedEdition Specific

Georgia Day

12 February; Georgia Day 2026 was 12 February · U.S. state-history commemoration centered on Georgia’s colonial founding

The Georgia Historical Society marks Georgia Day on 12 February in recognition of the founding of the Georgia colony at Savannah on 12 February 1733.

Source-backedFixed Annual

Grito de Independencia / Grito de Dolores

15 September ceremony, preceding Mexico’s Independence Day on 16 September · Mexico; national independence commemoration tradition

Government of Mexico material describes the Grito de Independencia ceremony on 15 September, commemorating the historical call associated with the start of independence.

Source-backedFixed Annual

Guru Ghasidas Jayanti

18 December · Chhattisgarh, India / High Court holiday-calendar evidence

High Court of Chhattisgarh calendars list Guru Ghasidas Jayanti on 18 December in both 2025 and 2026, supporting a stable December 18 date within that court-calendar scope.

Source-backedFixed Annual

Haryana Day

1 November · Haryana, India; state-formation commemoration

Haryana government sources identify 1 November with Haryana’s formation as a separate state in 1966 and commemorate Haryana Day.

Source-backedFixed Annual

Hiroshima Peace Memorial Ceremony / 6 August remembrance

6 August annually; the 2026 ceremony was 6 August 2026 at 8:00 a.m. · Hiroshima City peace remembrance of atomic-bomb victims and appeal for nuclear abolition and lasting peace

Hiroshima City states that it holds the Peace Memorial Ceremony every year on 6 August and published the 2026 ceremony schedule.

Source-backedHistorical Legacy

IBM PC unveiling anniversary

12 August anniversary of the 1981 IBM PC unveiling · Technology-history anniversary connected to IBM’s original Personal Computer

IBM’s own history states that the IBM PC was unveiled on 12 August 1981 at New York’s Waldorf Hotel.

Source-backedHistorical Legacy

Indian Citizenship Act anniversary

2 June anniversary of the 1924 Act · United States / historical legislative anniversary

The U.S. National Archives preserves the Indian Citizenship Act, approved 2 June 1924, which declared U.S.-born non-citizen Indians to be U.S. citizens while preserving tribal/property righ…

Source-backedFixed Annual

International Sagarmatha (Mount Everest) Day

29 May annually in Nepal’s official tourism observance · Nepal mountaineering and tourism commemoration of the first confirmed ascent of Everest

Nepal Tourism Board documents International Sagarmatha (Mount Everest) Day on 29 May, commemorating the 29 May 1953 ascent by Tenzing Norgay and Edmund Hillary.

Source-backedEdition Specific

Jamestown Day

9 May 2026 for the cited edition; event date is scheduled by organizers and rechecked yearly · Historic Jamestowne / Jamestown Settlement historical-programming event in Virginia

Historic Jamestowne’s 2026 calendar lists Jamestown Day on 9 May 2026, commemorating the 1607 settlement and its wider histories.

Source-backedEdition Specific

Juneteenth National Independence Day

19 June; Friday 19 June in the 2026 U.S. federal holiday schedule · United States federal holiday

The U.S. Office of Personnel Management lists Juneteenth National Independence Day on 19 June in the federal holiday schedule.

Source-backedFixed Annual

Keti Koti

1 July annually · Dutch and Surinamese remembrance and celebration connected to the abolition of slavery

Dutch public institutions describe Keti Koti on 1 July as remembrance of the abolition of slavery and a celebration of freedom.

Source-backedHistorical Legacy

Kyoto Protocol entry-into-force anniversary

16 February anniversary; the Protocol entered into force 16 February 2005 · International climate-treaty history under the UN Framework Convention on Climate Change

UNFCCC states that the Kyoto Protocol entered into force on 16 February 2005.

Source-backedHistorical Legacy

League of Nations founding/entry-into-force anniversary

10 January 1920 is the Covenant’s entry-into-force and original-member date context; League activities terminated 18 April 1946 · Historical international-organization anniversary

United Nations treaty archives document League membership dates beginning 10 January 1920 and the termination of League activities on 18 April 1946.

Source-backedFixed Annual

Liberation Revolution Day / Revolution Day (Algeria)

1 November annually · Algeria national public holiday and historical commemoration

Algeria’s Permanent Mission to the United Nations lists 1 November as Liberation Revolution Day among public holidays, and Algerian diplomatic missions document official Revolution Day comm…

Source-backedFixed Annual

Mabo Day

3 June · Australia; Aboriginal and Torres Strait Islander history and rights commemoration

The Australian Government multicultural calendar identifies 3 June as Mabo Day and links it to Eddie Koiki Mabo and the Mabo decision.

Source-backedFixed Annual

Maroons Day / Day of the Maroons in Suriname

10 October annually; 10 October 2026 fell on Saturday · Suriname public-holiday and cultural remembrance context

Suriname holiday calendars identify 10 October as Maroons Day; this recovery uses the stable date while keeping the legal/public-holiday claim narrowly scoped to Suriname and subject to gov…

Source-backedFixed Annual

Natalicio de José Gervasio Artigas

19 June · Uruguay; commemoration of José Gervasio Artigas

Uruguay’s Ministry of Education and Culture commemorates José Gervasio Artigas’s birth on 19 June.

Source-backedEdition Specific

National Girl Scout Day / Girl Scout Day

12 March; 12 March 2026 · Girl Scouts anniversary commemoration in the United States; not a federal public holiday

Girl Scouts council material for Girl Scout Week 2026 labels 12 March National Girl Scout Day, while a New York legislative resolution recognized Girl Scout Day on the same date and tied it…

Source-backedFixed Annual

National Rebellion Day

26 July · Cuban national historical holiday/commemoration

Official Cuba tourism-government material lists 26 July as National Rebellion Day, tied to the country’s revolutionary history.

Source-backedFixed Annual

Oklahoma City Bombing Anniversary / Annual Remembrance Ceremony

19 April annually; the 31st anniversary was 19 April 2026 · Oklahoma City bombing remembrance; the canonical “National ... Commemoration Day” title is not treated as a federal holiday designation

The National Park Service identifies the Oklahoma City National Memorial as honoring those changed forever by the 19 April 1995 bombing; Oklahoma public records and the annual Memorial cere…

Source-backedEdition Specific

PANAFEST

Biennial; the official site documents the 2025 edition in late July–early August, so recheck the next edition before publishing dates · Ghana-based Pan-African Historical Theatre Festival and heritage programme

PANAFEST’s official site describes the festival as a recurring Ghanaian Pan-African cultural programme; Ghana Tourism authorities also publish edition-specific activities.

Source-backedFixed Annual

Parakram Diwas

23 January annually; principal 2026 observance on 23 January · India; national commemoration of Netaji Subhas Chandra Bose

The Government of India designated 23 January, Netaji Subhas Chandra Bose’s birth anniversary, to be observed every year as Parakram Diwas.

Source-backedEdition Specific

Peasants’ Day

2 March 2026 in Myanmar’s official holiday calendar · Myanmar national public holiday and agricultural/rural commemoration

Myanmar’s Ministry of Foreign Affairs lists Peasants’ Day on 2 March in the 2026 public-holiday calendar.

Source-backedHistorical Legacy

Pony Express first-ride anniversary

3 April anniversary of the first official ride in 1860 · U.S. historical communications and western-trail anniversary

The National Park Service documents the first official Pony Express delivery beginning on 3 April 1860 and ongoing annual re-enactment traditions.

Source-backedFixed Annual

Primer Grito de Independencia / 10 de Agosto de 1809

10 August; holiday treatment may follow Ecuador’s current transfer rules · Ecuador national historical commemoration

Ecuador’s Ministry of Education commemorates 10 August 1809 as the Primer Grito de Independencia, and the Ministry of Tourism holiday calendar records the national observance in Ecuador’s h…

Source-backedFixed Annual

Prince Jonah Kūhiō Kalanianaʻole Day

26 March annually · Hawaiʻi, United States; state holiday

Hawaiʻi law designates 26 March as Prince Jonah Kūhiō Kalanianaʻole Day.

Source-backedFixed Annual

Ronald Reagan Day

6 February annually in California · California state-designated day of special significance in education

The California Department of Education states that 6 February of each year is designated and set apart as Ronald Reagan Day pursuant to Education Code section 37222, with schools encouraged…

Source-backedEdition Specific

Seward’s Day

30 March in Alaska’s 2026 state-holiday calendar · Alaska, United States; state holiday

Alaska DMV’s official state-holiday calendar lists Seward’s Day on 30 March 2026.

Source-backedEdition Specific

Space Exploration Day

20 July 2026 in the cited U.S. presidential message · U.S. presidential commemoration tied to space exploration and the Apollo 11 anniversary

GovInfo records a presidential message titled for Space Exploration Day with event date 20 July 2026, providing current federal executive-branch evidence for the named commemoration.

Source-backedRule Based Annual

Terry Fox Day

First Monday in August · Manitoba statutory observance

Legislative Assembly / Laws of Manitoba

Source-backedVariable Custom

Trooping the Colour

Annual June ceremony; exact edition date should be rechecked each year · United Kingdom; Royal Household ceremonial event marking the Sovereign’s official birthday

The Royal Household describes Trooping the Colour as an annual June ceremony marking the Sovereign’s official birthday.

Source-backedHistorical Legacy

USO Day — 1971 presidential proclamation / USO founding anniversary

4 February 1971 was proclaimed USO Day; USO was founded 4 February 1941 · United States / historical one-time presidential proclamation plus organizational anniversary

Presidential Proclamation 4029 proclaimed 4 February 1971 as USO Day for the organization’s 30th anniversary; USO records identify 4 February 1941 as its founding date.

Source-backedFixed Annual

Vijay Diwas

16 December annually · India; military remembrance of the 1971 victory

Government of India material states Vijay Diwas is observed on 16 December every year to commemorate India’s 1971 victory.

Source-backedFixed Annual

White Shirt Day

11 February annually in UAW tradition · United Auto Workers labor-history remembrance tied to the end of the Flint Sit-Down Strike

UAW sources describe White Shirt Day as an annual 11 February remembrance of the Flint Sit-Down Strike victory and worker dignity.