Remembrance observances

Day of the Martyrs of Liberty

3 February · São Tomé and Príncipe / national holiday

The government tourism holiday guide lists 3 February as Day of the Martyrs of Liberty and connects it with the 1953 Batepá events.

Day of the National Flag

26 June annually · Romania / statutory national flag observance

Romania’s Ministry of National Defence states that the Day of the National Flag was established by Law No. 96/1998 and is celebrated annually on 26 June.

Day of the Restoration of the State of Lithuania

16 February annually; 2026 programme verified · Lithuania / statehood commemoration

Lithuania’s Ministry of Culture identifies 16 February as the Day of the Restoration of the State of Lithuania and published the official 2026 commemoration programme.

Day of the State (Coronation of King Mindaugas)

6 July annually · Lithuania / public holiday

Lithuania’s Ministry of Foreign Affairs lists 6 July as the Day of the State (Coronation of King Mindaugas) in its official public-holiday schedule.

Death anniversary of Benazir Bhutto

27 December · Pakistan / memorial anniversary

Radio Pakistan documented the death anniversary of former Prime Minister Benazir Bhutto on 27 December in consecutive years, supporting the fixed anniversary date without implying a nationw…

Dia da Independência Nacional

11 November annually · Angola / national independence commemoration

Angola government material identifies 11 November as National Independence Day and commemorates the proclamation of independence in 1975.

Dia da Restauração da Independência

1 December · Portugal / national restoration commemoration and holiday

Portugal’s Armed Forces commemorated Dia da Restauração da Independência on 1 December 2025, marking the restoration of national sovereignty in 1640; the Government’s national-holiday regis…

Dutch-American Friendship Day

19 April in U.S. presidential/federal recognition history · United States–Netherlands diplomatic commemoration

Public Law 97-170 designated 19 April 1982 as Dutch-American Friendship Day; President Reagan’s proclamation tied the date to the 19 April 1782 establishment of diplomatic relations. A late…

Día de Acción por la Tolerancia y el Respeto entre los Pueblos

24 April every year · Argentina — national statutory commemoration

Argentina Law 26.199

Día de la Bandera

20 June annually · Argentina / statutory national flag commemoration

Argentina’s official government portal states that Law 12,361 fixed 20 June as Flag Day, and the official legal database records the law declaring that date Día de la Bandera.

Día de la Bandera / Mexican Flag Day

24 February annually · Mexico / national-symbol civic observance

Mexico’s federal government identifies February 24 as Mexican Flag Day and documents its annual observance.

Día de la Batalla de Boyacá

7 August annually; 7 August 2026 verified · Colombia / national civic commemoration and public holiday

Colombia’s Ministry of Foreign Affairs confirms 7 August 2026 as the commemoration of the Battle of Boyacá and a holiday in Colombia.

Día de la Batalla de Rivas

11 April annually · Costa Rica / statutory national commemoration

Costa Rica’s Legislative Assembly record for Act 8886 states that April 11 each year, the Day of the Battle of Rivas, is to be enjoyed and commemorated on the date itself.

Día de la Constitución

6 November; 2026 holiday observance moved to 9 November for work-calendar purposes · Dominican Republic / constitutional commemoration and 2026 holiday calendar

The Dominican Presidency’s 2026 holiday notice identifies 6 November as Constitution Day and states that, for 2026, the work holiday is moved to Monday 9 November.

Día de la Resistencia Indígena

12 October · Venezuela / national commemoration

Venezuela’s Ministry of Culture states that October 12 has been observed in Venezuela as Día de la Resistencia Indígena since the 2002 national renaming.

Día de la Restauración de la República

16 August; 2026 holiday not moved · Dominican Republic / national restoration commemoration

The Dominican Presidency’s 2026 holiday guidance identifies 16 August as Día de la Restauración de la República and states that the 2026 non-working holiday is not transferred.

Día de las Glorias del Ejército

19 September · Chile Army civic-military commemoration and legal holiday

Chilean Army; legal-holiday tradition traced to a 1915 decree

Día de las Glorias Navales

21 May · Chile naval and national civic commemoration

Chilean Navy

Día de Muñoz Rivera / birthday of Luis Muñoz Rivera

17 July annually in the 1917 statutory designation · Puerto Rico / historical statutory commemoration

Puerto Rico Act No. 47 of 1917 declared 17 July of each year, Luis Muñoz Rivera’s birthday, to be commemorated as Muñoz Rivera Day and a legal holiday at that time.

Día del Ejército de Guatemala

30 June; 2026 commemoration verified · Guatemala / national military commemoration

The Government of Guatemala documented official commemorative acts on 30 June 2026 for Día del Ejército de Guatemala, alongside the anniversary of the 1871 Liberal Revolution.

Día del Natalicio de José Celso Barbosa

27 July annually; 2026 gubernatorial proclamation verified · Puerto Rico / official commemorative observance

Puerto Rico law fixes 27 July as the commemoration of José Celso Barbosa’s birthday, and the Puerto Rico Department of State proclamation registry includes a 2026 gubernatorial proclamation…

Día del Soldado Hondureño / Francisco Morazán birth anniversary

3 October · Honduras / civic and military commemoration

Honduras’s defense authority states that the civic calendar marks October 3 as Día del Soldado Hondureño in connection with the birth anniversary of Francisco Morazán.

EDSA People Power Revolution Anniversary

25 February 2026; special working day in 2026 · Philippines / 2026 national calendar designation

Philippine government information states that 25 February 2026, the EDSA People Power Revolution Anniversary, was declared a special working day under Proclamation No. 1006, Series of 2025.

Emancipation Day

1 August annually · Guyana / public holiday

Guyana’s Ministry of Home Affairs identifies 1 August as Emancipation Day and has formally declared the date a public holiday under the Public Holidays Act in annual notices.

Eswatini Independence Day

6 September · Kingdom of Eswatini / national holiday

The Permanent Mission of the Kingdom of Eswatini to the United Nations identifies Independence Day on 6 September and records independence on 6 September 1968.

European Day for Victims of Crime

22 February annually · Victim Support Europe / European victims’ rights movement

Victim Support Europe states that it officially designated February 22 as the European Day for Victims of Crime in Stockholm in 1990.

European Day of Remembrance for Victims of Stalinism and Nazism

23 August · European Union / European remembrance observance

The European Parliament’s 2008 declaration called for 23 August to be proclaimed the European Day of Remembrance for Victims of Stalinism and Nazism, and later Parliament material continues…

Facebook launch anniversary

4 February 2004 · Facebook / historical product launch anniversary

Meta states that Facebook launched in 2004; Harvard contemporaneous-history reporting identifies February 4, 2004 as the launch date of TheFacebook.

February 17 Revolution anniversary

17 February · Libya / official national commemoration

Libyan government sources identify February 17 as the anniversary of the February 17 Revolution and list it as an official holiday/commemoration.

Federal Territory Day

1 February annually; 1 February 2026 verified · Malaysia / Kuala Lumpur, Putrajaya and Labuan

Bank Negara Malaysia lists Federal Territory Day Holiday on 1 February 2026; Tourism Malaysia describes it as the February 1 public holiday for Kuala Lumpur, Putrajaya and Labuan.

Filipino-Chinese Friendship Day

9 June annually · Philippines / presidentially designated friendship observance

Proclamation No. 148 declares June 9 every year as Filipino-Chinese Friendship Day.

First Philippine Republic Day

23 January annually · Philippines / nationwide special working holiday

Republic Act No. 11014 declares January 23 of every year First Philippine Republic Day and a special working holiday throughout the Philippines.

Forefathers’ Day

21 December for the Pilgrim Society; 22 December for the Old Colony Club, with each tradition’s Sunday adjustment · Plymouth, Massachusetts / distinct Forefathers’ Day traditions maintained by the Pilgrim Society and Old Colony Club

Pilgrim Hall Museum documents two longstanding Plymouth traditions: the Pilgrim Society uses December 21 (December 20 when the 21st is Sunday), while the Old Colony Club uses December 22 (D…

Frederick Douglass Birthday Celebration

14 February as the longstanding traditional birthday commemoration · U.S. historical and Black-history commemoration

The National Park Service states that 14 February, the birthday date Frederick Douglass chose to celebrate, has long been a day of celebration in Black communities; NPS programming continue…

Freedom to Marry Day

12 February (historical campaign observance; later expanded into Freedom to Marry Week) · United States / historical marriage-equality organizing observance

Freedom to Marry’s archive says its annual Freedom to Marry Week grew from the original Freedom to Marry Day on February 12; Lambda Legal also documents the original Day and later Week. The…

French National Day (Bastille Day search alias)

14 July 2026 · Saint-Martin / French legal-holiday calendar

France’s Service Public table lists Fête nationale on Tuesday 14 July 2026 among France’s national legal holidays. “Bastille Day” is retained as the English search alias.

Fête de l’Indépendance de la Côte d’Ivoire

7 August annually; 7 August 2026 verified · Côte d’Ivoire / national independence celebration

The Government of Côte d’Ivoire documented the official 66th independence celebration on 7 August 2026.

Fête de l’Indépendance de la Côte d’Ivoire

7 August; 66th anniversary in 2026 · Côte d’Ivoire / national independence observance

The Government of Côte d’Ivoire documented the official 66th independence celebration on 7 August 2026 and identifies the occasion as the Fête de l’Indépendance.

Fête du Drapeau et de l’Université

18 May annually; 2025 national ceremony verified · Haiti / national flag and university observance

The Government of Haiti documented official 18 May 2025 ceremonies for the Fête du Drapeau et de l’Université and described the date’s national symbolic importance.

Fête d’accession à la souveraineté nationale et internationale / Independence anniversary

1 August annually · Benin / national independence observance

The Government of Benin identifies 1 August as the country’s accession-to-sovereignty celebration and documented the 63rd independence anniversary on 1 August 2023; the government also publ…

Fête nationale / Independence anniversary of Gabon

17 August annually; 66th anniversary in 2026 · Gabon / national independence observance

The Presidency of Gabon documented the country’s national celebration on 17 August 2026 as the 66th anniversary of accession to international sovereignty.

General Pulaski Memorial Day

11 October; 2025 presidential proclamation verified · United States / presidential commemorative observance

The White House proclaimed October 11, 2025 as General Pulaski Memorial Day and encouraged Americans to commemorate those who contributed to the nation.

Gibraltar National Day

10 September; 2025 and 2026 official holiday schedules verified · Gibraltar / bank and public holiday

The Government of Gibraltar lists Gibraltar National Day on September 10 in both its 2025 and 2026 bank and public holiday schedules.

Gold Star Spouses Day

5 April · United States military-family remembrance and recognition observance

U.S. Department of Defense source verification

Guru Gobind Singh Ji Parkash Purav

December or January; target-year Sikh-calendar date varies · India / Sikh birth-anniversary observance

India's Ministry of Tourism states that Guru Gobind Singh Jayanti, also called Prakash Parv, falls every year in December or January.

Guru Ravidas Jayanti

1 February 2026 · India / 2026 Central Government office holiday calendar reference (Assam)

The Government of India Controller of Communication Accounts, Assam lists Guru Ravidas Jayanti on 1 February 2026 in its 2026 gazetted-holiday calendar.

H.M. King Bhumibol Adulyadej the Great’s Birthday, National Day and Father’s Day

5 December 2026; substitute financial-institution holiday 7 December 2026 · Thailand / 2026 financial-institution holiday calendar

The Bank of Thailand lists 7 December 2026 as the substitution holiday for the 5 December 2026 birthday of King Bhumibol, National Day and Father’s Day.

Harvey Milk Day

22 May each year · California, United States / day of special significance in education law

California Department of Education cites Education Code section 37222.13 designating May 22 of each year as Harvey Milk Day and encouraging educational remembrance

Hawke’s Bay Anniversary Day

Actual anniversary date 1 November; observed Friday 23 October in 2026 · Hawke’s Bay, New Zealand / provincial anniversary observance

Employment New Zealand’s 2026 table lists Hawke’s Bay’s actual anniversary date as 1 November and the observed date as Friday 23 October, following the Friday-before-Labour-Day convention.

Herbert Hoover Day

Sunday on or nearest 10 August · Iowa state commemorative day, United States

Iowa Code §1C.8

Heritage Day

First Monday in August; 3 August 2026 · Alberta, Canada / optional general holiday

The Government of Alberta lists Heritage Day on the first Monday in August and identifies it as an optional general holiday rather than one of Alberta’s statutory general holidays.

Heroes’ Day of Zambia

Early July; confirm the current government holiday notice · Zambia

Holocaust Martyrs’ and Heroes’ Remembrance Day (Yom HaShoah)

14 April 2026; official state opening on the evening of 13 April · Israel / national Holocaust remembrance observance

The President of Israel addressed the official state opening ceremony on 13 April 2026, beginning the 2026 Holocaust Martyrs’ and Heroes’ Remembrance Day observance.

Holocaust Memorial Day

27 January annually · United Kingdom / national Holocaust remembrance

UK government material marks Holocaust Memorial Day annually on 27 January, the anniversary of the liberation of Auschwitz-Birkenau.

Homeless Persons’ Memorial Day

On or around 21 December / the winter solstice · United States / organizer-led remembrance for people who died while experiencing homelessness

The National Health Care for the Homeless Council and partner organizations promote Homeless Persons’ Memorial Day on or around December 21, the winter solstice, to remember people who died…

Hong Kong Special Administrative Region Establishment Day

1 July annually; 2026 and 2027 government calendars verified · Hong Kong SAR / general holiday and establishment anniversary

Hong Kong government holiday notices list Hong Kong Special Administrative Region Establishment Day on 1 July; the Chief Executive’s 2026 remarks identify 1 July 2026 as the 29th establishm…

Humane Society of the United States founding anniversary

Historical founding date: 22 November 1954 · United States / organizational-history anniversary of the Humane Society of the United States, now Humane World for Animals

The organization’s incorporation record states that the Humane Society of the United States was originally incorporated on November 22, 1954; its own anniversary history also identifies Nov…

Implantação da República

5 October · Portugal / national republic commemoration and holiday

The Government of Portugal scheduled the official 115th anniversary commemoration of the Implantação da República for 5 October 2025; the government holiday register lists 5 October under t…

Inauguration of the Pontificate of Pope Benedict XVI

24 April 2005 (historical inauguration) · Catholic Church / historical inauguration of Pope Benedict XVI’s pontificate at St. Peter’s Square

Vatican records document the Mass for the inauguration of Pope Benedict XVI’s pontificate on April 24, 2005. The inventory label “Coronation Day” is not the Vatican’s canonical description…

Independence anniversary of Seychelles

29 June; 50th anniversary in 2026 · Seychelles / national independence anniversary

State House Seychelles identifies 29 June 1976 as the date Seychelles attained independence and describes 2026 as the 50th Independence anniversary.

Independence Day

1 July annually · Burundi / national public holiday

Burundi’s Ministry of Foreign Affairs lists Independence Day on 1 July, and the Presidency marked the 64th anniversary in 2026.

Independence Day

18 February annually; 18 February 2026 verified · The Gambia / national independence day

The Government of The Gambia lists Independence Day on February 18, and the Office of the President marked the 61st Independence Day anniversary on February 18, 2026.

Independence Day

27 October 2026; government holiday calendar verified · Saint Vincent and the Grenadines / national holiday

The Government of Saint Vincent and the Grenadines Statistical Office calendar lists Independence Day on 27 October 2026 and notes closure for the national holiday.

Independence Day of Kazakhstan

16 December annually · Kazakhstan / state holiday

Kazakhstan’s official government portal states that Independence Day is celebrated annually on 16 December and the 2026 holiday schedule lists Kazakhstan Independence Day on 16 December.

Independence Day of the Maldives

26 July annually · Maldives / national independence observance

The President’s Office states that Independence Day is observed annually on 26 July, commemorating the Maldives gaining full independence from the British Protectorate in 1965.

Independence Day of the Republic of Belarus (Day of the Republic)

3 July annually · Belarus / national holiday

The President of Belarus official holiday register lists Independence Day of the Republic of Belarus (Day of the Republic) on 3 July, and the presidency documented the 2026 observance on th…

Independence Day of the Republic of Moldova

27 August annually; 35th anniversary in 2026 · Republic of Moldova / national independence observance

The Government of Moldova states that the Republic marks Independence Day on 27 August and that Moldova proclaimed independence on 27 August 1991; the 2026 programme marked the 35th anniver…

Independence of Burkina Faso / 5 August historical proclamation context

5 August 1960 historical independence date; contemporary official commemoration requires context · Burkina Faso / independence-history context

Burkina Faso’s Presidency biography of Maurice Yaméogo states that he proclaimed the country’s independence on 5 August 1960, while government material also uses 11 December for the nationa…

Indian Arrival Day

5 May · Guyana national commemoration

Office of the President of Guyana

International Bereaved Mother’s Day

First Sunday in May (3 May in 2026) · International grief/remembrance observance for mothers whose children have died

Founder Carly Marie’s published account states that International Bereaved Mother’s Day was created in 2010 and is held on the first Sunday of May; current bereavement organizations observe…

International Chernobyl Disaster Remembrance Day

26 April · United Nations / international observance

A/RES/71/125

International Day Commemorating the Victims of Acts of Violence Based on Religion or Belief

22 August · United Nations / international observance

A/RES/73/296