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Evergreen date guide

What is celebrated on December 9?

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

Date authority profile

What this date contains

7 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.

2 explicit country-scope records

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

2 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 December 9

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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.

Reviewed depth

Other in-depth guides on December 9

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Topics represented on December 9

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Civic, Remembrance & History 4Faith, Tradition & Spirituality 1Health, Wellness & Awareness 1Food, Drink & Hospitality 1
7 date-resolved records

All observances on this date

Source-backedFixed Annual

Christmas Card Day

9 December · Informal Christmas-season greeting-card observance

Hallmark’s December observance calendar and timeanddate both identify December 9 as Christmas Card Day.

Source-backedFixed Annual

Independence Day

9 December annually · Tanzania / national public holiday

Official Tanzanian mission holiday listings identify 9 December as Independence Day and a public holiday.

Source-backedFixed Annual

International Day of Veterinary Medicine

9 December · Veterinary/pet-awareness calendar usage; international in name, without evidence here of an intergovernmental designation

The Animal Medical Center lists International Day of Veterinary Medicine on December 9 across multiple annual veterinary-awareness calendars, including 2024, 2025 and 2026.

Source-backedFixed Annual

National Opal Apples Day

9 December · United States / Opal Apples brand campaign

Opal Apples maintains a dedicated National Opal Apples Day campaign asset, while current observance calendars consistently place the campaign on December 9.

Source-backedFixed Annual

V.C. Bird Day / National Heroes Day

9 December · Antigua and Barbuda / national holiday calendar

The Government of Antigua and Barbuda lists V.C. Bird Day on 9 December; its Government Information Service also identifies 9 December as V.C. Bird Day/National Heroes Day.

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 →