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Evergreen date guide

What is celebrated on January 28?

For 2026, these source-backed observances resolve to Wednesday, January 28. Recurring rules can move in another year, so each record keeps its own date logic.

Date authority profile

What this date contains

9 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.

Reviewed depth

Other in-depth guides on January 28

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Topics represented on January 28

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Community, Causes & Advocacy 3Workplace, Professions & Appreciation 2Health, Wellness & Awareness 1Civic, Remembrance & History 1Arts, Entertainment & Lifestyle 1Food, Drink & Hospitality 1
9 date-resolved records

All observances on this date

Source-backedFixed Annual

Data Protection Day

28 January · Council of Europe-designated international privacy observance

Council of Europe

Source-backedFixed Annual

Data Protection Day / International Data Protection Day / Privacy Day

28 January · Council of Europe / worldwide privacy-awareness usage

The Council of Europe states that its Committee of Ministers designated 28 January as Data Protection Day in 2006 and that the day is now celebrated worldwide under names including Internat…

Source-backedFixed Annual

Global Community Engagement Day

28 January · International community-engagement profession / Engage 2 Act-created observance

The Consultation Institute identifies January 28 as Global Community Engagement Day and describes Engage 2 Act as the creator of the observance.

Source-backedFixed Annual

José Martí birth anniversary

28 January annually · Cuba / national-hero commemorative context

Granma identifies January 28 as the birth anniversary of Cuba’s National Hero José Martí and documents recurring commemorations around that date.

Source-backedRule Based Annual

Library Shelfie Day

Fourth Wednesday of January; 28 January in 2026 · Libraries and readers / social book-and-library tradition

The New York Public Library says Library Shelfie Day occurs every year on the fourth Wednesday of January and that the tradition started in 2014.

Source-backedFixed Annual

National Blueberry Pancake Day

28 January · United States / blueberry-industry observance

The U.S. Highbush Blueberry Council repeatedly identifies January 28 as National Blueberry Pancake Day and publishes promotional assets for the date.

Source-backedFixed Annual

Thank a Plugin Developer Day

28 January · WordPress-origin developer-appreciation observance

WordPress co-founder Matt Mullenweg declared January 28 Thank a Plugin Developer Day in a 2009 WordPress News post; JetBrains independently references the same January 28 initiative.

Source-backedEdition Specific

Thank Your Mentor Day

28 January in the 2026 National Mentoring Month edition · United States / MENTOR National Mentoring Month campaign

MENTOR’s 2026 National Mentoring Month materials list Thank Your Mentor Day on January 28. Earlier campaign editions used other January dates, so the date is stored as edition-specific rath…

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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