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Evergreen date guide

What is celebrated on October 9?

For 2026, these source-backed observances resolve to Friday, October 9. Recurring rules can move in another year, so each record keeps its own date logic.

Date authority profile

What this date contains

10 unique authority records

The list is deduplicated at the public entity layer while retaining all research provenance behind each page.

0 stable or rule-calculated

0 fixed annual and 0 reusable rule-based records can be placed without inventing a new date.

0 edition-specific

Edition-specific dates appear only when the requested year matches the verified edition; variable and historical records remain gated.

5 explicit country-scope records

Country scope stays attached to the underlying record instead of being generalized into a worldwide observance.

1 reviewed in-depth guides

These entities add reviewed meaning, history, activities, facts and FAQs without rewriting the authority facts.

Curated global anchors

Major global guides on October 9

See the collection →

A reviewed starting point drawn from prominent global observances with strong institutional or organizer provenance. Selection does not change each record’s official status or scope.

Source-backedFixed AnnualIn-depth guide

World Post Day

9 October · UPU / United Nations / international observance

UPU/1969/Res.C.11

Explore the mix

Topics represented on October 9

All topics →
Civic, Remembrance & History 4Food, Drink & Hospitality 3Celebrations & Social 1Workplace, Professions & Appreciation 1Arts, Entertainment & Lifestyle 1
10 date-resolved records

All observances on this date

Source-backedFixed Annual

Commemoration of the abolition of slavery — Saint-Barthélemy

9 October annually · Saint-Barthélemy / statutory abolition commemoration and public holiday

French Labour Code article L3422-2 designates 9 October in Saint-Barthélemy as a public holiday for the commemoration of the abolition of slavery.

Source-backedFixed Annual

Hangul Proclamation Day

9 October · Republic of Korea national holiday

Republic of Korea Ministry of Personnel Management; Act on National Holidays

Source-backedFixed Annual

Independence Day

9 October · Uganda

Australia’s Department of Foreign Affairs and Trade current National Days protocol register lists Uganda — Independence Day on 9 October. The source verifies the diplomatic national-day ide…

Source-backedFixed Annual

Independence of Guayaquil

9 October annually · Guayaquil, Ecuador / municipal civic commemoration

The Municipality of Guayaquil identifies 9 October 1820 as Guayaquil’s independence and marks 9 October with civic commemoration.

Source-backedFixed Annual

International Beer and Pizza Day

9 October · Founder-led food-and-drink observance

The observance’s own site states that International Beer and Pizza Day began in 2016, was founded by Nick Saulino, and is celebrated each year on 9 October.

Source-backedFixed Annual

Leif Erikson Day

9 October · United States / federal patriotic observance

36 U.S.C. §114 provides that the President may issue each year a proclamation designating October 9 as Leif Erikson Day.

Source-backedFixed Annual

Moldy Cheese Day

9 October · Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars from different publication years list Moldy Cheese Day on 9 October.

Source-backedEdition Specific

Vet Nurse Day

9 October 2026 · France / veterinary assistant and nurse recognition initiative

The official Vet Nurse Day site states that the 2026 Vet Nurse Day is on 9 October 2026 and publishes the associated veterinary-assistant initiative.

Source-backedRule Based Annual

World Egg Day

Second Friday of October · Organizer-backed global food observance

World Egg Organisation

Source-backedFixed AnnualIn-depth guide

World Post Day

9 October · UPU / United Nations / international observance

UPU/1969/Res.C.11

How this date is built

This page is assembled from verified fixed dates, reusable recurrence rules, and target-year records whose edition matches 2026. Variable, historical or unresolved records are not silently forced onto this date.

Read the methodology →