259 briefs · 43 iconic · 5 categories · 54 countries

Every brief, one library.

One page per holiday, festival, or public day. Each brief covers origins, dates, customs, legal status, and where it is contested — then links the primary sources.

Briefs

259

Across the year

Iconic

43

Flagship briefs

Categories

5

Civil, religious, cultural, international

Countries

54

And growing

Today

Thursday, October 22, 2026

No federal or major public holiday observed today across tracked regions.

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Library at a glance

259 briefs · 43 iconic · 5 categories · 54 countries

Month: Jan

Showing 17 briefs in Jan.

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Federal holiday(4)

Jan

Australia Day - January 26, the national day from 1788 to contested modern observance

Australia Day on January 26 is the national day of Australia, marking the 1788 arrival of the First Fleet at Port Jackson. A public holiday in every state and territory; civic ceremonies, Australia Day Honours, citizenship ceremonies, and the Australian of the Year announcement. Increasingly contested as a public observance since the 2010s.

AU
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Jan

Inauguration Day - January 20 every four years, the swearing-in of the US President and Vice President

Inauguration Day on January 20 every fourth year is the day on which the President and Vice President of the United States are sworn in, beginning a new presidential term. It is a federal public holiday only in the District of Columbia and the immediate surrounding area, but it is observed ceremonially across the country.

US
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Jan

Martin Luther King Jr. Day - third Monday of January, federal holiday since 1986

Martin Luther King Jr. Day on the third Monday of January is a US federal holiday honoring the civil rights leader. Established in 1983 (effective 1986), it is one of 11 federal holidays under 5 U.S.C. 6103. The most recent federal holiday before Juneteenth in 2021.

US
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Jan

Republic Day - January 26, the Indian Constitution coming into force, and how India observes it

Republic Day on January 26 marks the date in 1950 when the Constitution of India came into force, replacing the Government of India Act 1935 as the governing document. A national public holiday in India, observed with a military parade in New Delhi.

IN
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Civic memorial(0)

Cultural celebration(5)

Iconic
Jan - Feb

Le Tet - the Vietnamese lunar new year, when the first person to cross into the new year decides the fortune of the house

Le Tet, Tet Nguyen Da, is the Vietnamese lunar new year, observed over five days with a peach tree, banh chung rice cakes, and a first-footing rule that makes who steps through the door first matter.

VN
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Iconic
Jan - Mar

Lunar New Year - how the date moves, what it celebrates, and how it differs from country to country

Lunar New Year (Chunjie / Seollal / Tet) is the most widely observed non-fixed secular holiday in the world. The exact date moves each year on the Gregorian calendar; in 2026 it falls on February 17.

CNKRVNSGMYTW
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Iconic
Jan - Feb

Seollal - the Korean lunar new year, three days of ancestral rites, tteokguk and returning to your ancestral hometown

Seollal is the Korean lunar new year, observed over three days in late January or February. It centres on ancestral rites, eating tteokguk, and the custom of returning to one's ancestral hometown - ibyeong - for the new year.

KR
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Iconic
Jan - Feb

Tsagaan Sar - the Mongolian lunar new year, where the first morning of the year is greeted with a pinch of salt

Tsagaan Sar is the Mongolian lunar new year, marking the first day of the first month of the traditional Mongolian calendar. The celebration runs across the whole lunar month and centres on the Sun Moon and Khadag gifts given to elders.

MN
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Jan - Mar

Mardi Gras - Fat Tuesday, the day before Ash Wednesday and the Carnival season before Lent

Mardi Gras (literally "Fat Tuesday" in French) is the pre-Lenten Carnival on the day before Ash Wednesday, observed worldwide with parades, masquerade balls, and rich traditional foods. The New Orleans tradition is the most famous in the US; Carnival is observed worldwide on the local Fat Tuesday.

USBRIT
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Religious observance(3)

International observance(5)

Iconic
Jan

New Year - January 1, the Gregorian calendar New Year, origins, and how it is observed worldwide

New Year on January 1 marks the start of the Gregorian calendar year. A federal public holiday in most countries, observed with midnight countdown, family gatherings, fireworks, and resolutions. Replaced older regional new years over the 16th-20th centuries.

USGBCADEINCN
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Jan

International Day of Education - January 24, the UN day for global education

International Day of Education on January 24 is the UN International Day celebrating education as a fundamental human right and global public good. Established by UNGA Resolution 73/25 in 2019, marked by UNESCO. Not a public holiday.

UN
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Jan

International Holocaust Remembrance Day - January 27, UN day since 2005

International Holocaust Remembrance Day on January 27 is a United Nations day of memorial established in 2005 marking the 1945 liberation of Auschwitz-Birkenau. Observed annually in UN member states with ceremonies, educational programmes, and moments of silence. Not a public holiday.

UN
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Jan

World Braille Day - January 4, the UN day for Louis Braille and accessible literacy

World Braille Day on January 4 is the UN International Day recognizing the importance of Braille as a means of communication for blind and partially sighted people. Established in 2019 by UNGA Resolution 73/161, marks the 1809 birthday of Louis Braille. Not a public holiday.

UN
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Jan

World Neglected Tropical Diseases Day - January 30, WHO observance launched in 2020

World Neglected Tropical Diseases Day on January 30 is a WHO observance launched in 2020 to mobilise action against diseases that affect more than one billion people. The date marks the 2012 London Declaration on NTDs. Each year the WHO publishes a flagship progress report. Not a public holiday.

UN
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