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Evergreen date guide

What is celebrated on April 9?

See the observances and verified observance-history milestones attached to April 9. Each observance keeps its own source and date details.

Verified history

On this date in observance history

Today in history →

Selected observance milestones connected to this date, based on reviewed sources.

2022
First observance

National Mature Women’s Day

The brand’s 2026 release says it established the observance in 2022, and its 2023 release treats the campaign as annual; this supports April 9, 2022 as the first public edition wh…

2012
First observance

International ASMR Day

The March 2012 proposal targeted April 9 that year, and an April 10, 2012 creator follow-up refers to the previous day as International ASMR Day.

About this date

What this date contains

6 observances

Each observance is shown once in this view, with its own source and scope details available on the guide page.

0 repeat predictably

0 use a fixed annual date and 0 follow a reusable calendar rule.

0 are edition-specific

These dates are shown only for the year or edition that has been confirmed.

2 have a country-specific scope

Country-specific observances are not presented as worldwide events.

6 have in-depth guides

These pages include reviewed meaning, history, activities, facts and FAQs.

Reviewed depth

Other in-depth guides on April 9

Source-backedEdition SpecificIn-depth guide

Araw ng Kagitingan (Day of Valor)

9 April 2026; verify each target year · Philippine regular holiday; “Bataan Day” is a common/legacy English label

Philippine legislation establishes the observance and its statutory date framework; Proclamation No. 1006 sets the 2026 observed holiday on 9 April, while other years can differ under law o…

Source-backedEdition SpecificIn-depth guide

Constitution Day of the Republic of Kosovo

9 April; current observance confirmed in 2026 · Kosovo / national Constitution Day

The Office of the President of Kosovo marked Constitution Day on April 9, 2026; earlier Prime Minister communications also identify April 9 as Constitution Day.

Source-backedFixed AnnualIn-depth guide

International ASMR Day

9 April · Community/media observance associated with ASMR creators and audiences

YouTube’s official Culture & Trends blog identified 9 April 2024 as International ASMR Day; independent observance calendars consistently use 9 April as the annual date.

Source-backedFixed AnnualIn-depth guide

National Former POW Recognition Day

9 April annually · United States / federal former-POW remembrance observance

Federal records show Congress designated April 9, 1987 as National Former POW Recognition Day and President Reagan proclaimed it on April 8, 1987; VA materials continue annual April 9 remem…

Source-backedFixed AnnualIn-depth guide

National Mature Women’s Day

9 April · United States / Laura Geller Beauty brand-created observance

Laura Geller Beauty’s own releases identify April 9 as National Mature Women’s Day and state that the brand created the observance.

Source-backedFixed AnnualIn-depth guide

Vimy Ridge Day

9 April · Canadian national day of remembrance of the Battle of Vimy Ridge

Canada’s Vimy Ridge Day Act designates April 9 in every year as Vimy Ridge Day, and Veterans Affairs Canada continues to host annual commemorative ceremonies.

Explore the mix

Topics represented on April 9

All topics →
Civic, Remembrance & History 3Arts, Entertainment & Lifestyle 1Workplace, Professions & Appreciation 1Community, Causes & Advocacy 1
6 observances

All observances on this date

Source-backedEdition SpecificIn-depth guide

Araw ng Kagitingan (Day of Valor)

9 April 2026; verify each target year · Philippine regular holiday; “Bataan Day” is a common/legacy English label

Philippine legislation establishes the observance and its statutory date framework; Proclamation No. 1006 sets the 2026 observed holiday on 9 April, while other years can differ under law o…

Source-backedEdition SpecificIn-depth guide

Constitution Day of the Republic of Kosovo

9 April; current observance confirmed in 2026 · Kosovo / national Constitution Day

The Office of the President of Kosovo marked Constitution Day on April 9, 2026; earlier Prime Minister communications also identify April 9 as Constitution Day.

Source-backedFixed AnnualIn-depth guide

International ASMR Day

9 April · Community/media observance associated with ASMR creators and audiences

YouTube’s official Culture & Trends blog identified 9 April 2024 as International ASMR Day; independent observance calendars consistently use 9 April as the annual date.

Source-backedFixed AnnualIn-depth guide

National Former POW Recognition Day

9 April annually · United States / federal former-POW remembrance observance

Federal records show Congress designated April 9, 1987 as National Former POW Recognition Day and President Reagan proclaimed it on April 8, 1987; VA materials continue annual April 9 remem…

Source-backedFixed AnnualIn-depth guide

National Mature Women’s Day

9 April · United States / Laura Geller Beauty brand-created observance

Laura Geller Beauty’s own releases identify April 9 as National Mature Women’s Day and state that the brand created the observance.

Source-backedFixed AnnualIn-depth guide

Vimy Ridge Day

9 April · Canadian national day of remembrance of the Battle of Vimy Ridge

Canada’s Vimy Ridge Day Act designates April 9 in every year as Vimy Ridge Day, and Veterans Affairs Canada continues to host annual commemorative ceremonies.

How dates are selected

This page combines fixed annual dates, reusable calendar rules and year-specific dates confirmed for 2026. Variable or historical dates are included only when they are clearly supported.

Read the methodology →