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Evergreen date guide

What is celebrated on October 13?

For 2026, these source-backed observances resolve to Tuesday, October 13. 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.

3 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 13

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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.

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Topics represented on October 13

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Health, Wellness & Awareness 3Civic, Remembrance & History 2Community, Causes & Advocacy 1Relationships & Family 1
7 date-resolved records

All observances on this date

Source-backedFixed Annual

Herpes Awareness Day

13 October · United States / herpes-awareness observance

National Today places Herpes Awareness Day on October 13 annually, and AnydayGuide independently lists National Herpes Awareness Day on October 13.

Source-backedFixed Annual

International Civility for the Girl Child Day

13 October · International / creator-documented girl-child civility and leadership observance

National Day Archives identifies October 13 and names Louisa Akaiso as the 2020 creator; EventGuide independently lists the observance every October 13.

Source-backedFixed Annual

National Transfer Money to Your Son Day

13 October · United States / informal family-and-money observance

National Today and Awareness Days independently place National Transfer Money to Your Son Day on October 13.

Source-backedFixed Annual

U.S. Navy Birthday

13 October annually · United States / U.S. Navy anniversary

Naval History and Heritage Command identifies 13 October as the date celebrated as the U.S. Navy’s birthday.

Source-backedFixed Annual

World Thrombosis Day

13 October · Organizer-backed international observance

International Society on Thrombosis and Haemostasis (ISTH)

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.

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