Observance guideSource-backed

Mesothelioma Awareness Day2026 · Date · History · Messages

The Mesothelioma Applied Research Foundation states that Mesothelioma Awareness Day takes place annually on September 26 and was established by its community in 2004.

Annual dateReviewed 2026-10-02Sensitive topic

About Mesothelioma Awareness Day

Mesothelioma Awareness Day is observed on September 26 each year. The Mesothelioma Applied Research Foundation says the observance was established by its community in 2004 to raise awareness of mesothelioma.

Mesothelioma is a cancer that develops in the mesothelium, the tissue lining certain internal organs. This page provides general awareness information only and is not a diagnosis, treatment plan or prognosis.

Why Mesothelioma Awareness Day matters

The awareness day is intended to improve public understanding of mesothelioma and support attention to research, patients, families and prevention-related information.

Health information should remain source-bounded. A person’s symptoms, exposure history, screening questions or treatment choices require individualized guidance from qualified clinicians.

History of Mesothelioma Awareness Day

The Mesothelioma Applied Research Foundation states that its community established Mesothelioma Awareness Day in 2004.

The Foundation continues to identify September 26 as the annual awareness date and provides campaign resources for participation.

The reviewed evidence does not establish a formal government instrument creating the observance or a separate statutory public-holiday status.

Institutional timeline

How the observance developed

This timeline uses documented milestones from reviewed sources. Missing stages are left out rather than guessed.

  1. Origin / proposal

    Mesothelioma Applied Research Foundation community

    The Foundation says Mesothelioma Awareness Day was established in 2004 by members of its community.

  2. Establishment

    Mesothelioma Applied Research Foundation community

    The organizer directly attributes establishment of the awareness day to its community.

  3. First observance

    First documented observance

    The Foundation states that Mesothelioma Awareness Day was established in 2004; the reviewed source does not require a more precise first-edition date claim.

  4. Current stewardship

    Mesothelioma Applied Research Foundation

    The Foundation currently maintains Mesothelioma Awareness Day information and campaign resources.

Origins & establishment

What the evidence establishes

Evidence & sources ↓

Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.

Originator / proposerMesothelioma Applied Research Foundation communityThe Foundation says Mesothelioma Awareness Day was established in 2004 by members of its community.
Proclaiming / establishing bodyMesothelioma Applied Research Foundation communityThe organizer directly attributes establishment of the awareness day to its community.
Current facilitator / coordinatorMesothelioma Applied Research FoundationThe Foundation currently maintains Mesothelioma Awareness Day information and campaign resources.
First observance2004The Foundation states that Mesothelioma Awareness Day was established in 2004; the reviewed source does not require a more precise first-edition date claim.
5 fields not established in reviewed sources
Original establishing instrument / decisionNo formal establishing instrument is identified in the reviewed sources.
Original instrument adoption / decision dateNo formal adoption date is identified in the reviewed sources.
Former nameNo former recurring name is established in the reviewed sources.
Former dateNo former recurring date is established in the reviewed sources.
Why this exact date?The reviewed sources establish September 26 but do not explain the original reason that exact date was selected.
Source qualityHigh confidence
1 Primary institutional / legal1 Official organizer
View all sources ↓
Names

Also known as

National Mesothelioma Awareness Day

How to Observe Mesothelioma Awareness Day

01

Use established cancer organizations for general information about mesothelioma and asbestos-related risk.

02

Share awareness resources that avoid implying that a symptom or exposure history proves a diagnosis.

03

Support reputable research, patient-support or education organizations if you choose.

04

Respect the privacy of patients and families; do not share personal medical details without permission.

05

For personal symptoms, exposure concerns or treatment questions, seek individualized medical care rather than relying on an awareness-day guide.

Mesothelioma Awareness Day Facts

Fact 01

Mesothelioma Awareness Day is September 26.

Fact 02

The Mesothelioma Applied Research Foundation says its community established the observance in 2004.

Fact 03

Mesothelioma is a cancer affecting the mesothelium, tissue that lines certain internal organs.

Fact 04

Asbestos exposure is an important risk factor for mesothelioma, but an awareness page cannot determine an individual’s risk or diagnosis.

Fact 05

For Mesothelioma Awareness Day, the reviewed sources do not establish the observance as a statutory public holiday.

Mesothelioma Awareness Day Messages

Mesothelioma Awareness Day is a time to share accurate information and support people affected by the disease.

May September 26 encourage informed, compassionate conversation about mesothelioma and research.

Today is an opportunity to support patients, families, researchers and trustworthy education resources.

Classification

Topic and context

Health, Wellness & Awareness →
Accuracy notes

What this page does not assume

  • Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
  • Do not treat the title alone as proof of government recognition or public-holiday status.
  • Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
  • Health Information Not Medical Advice.
Evidence

Evidence & sources

Source policy →

Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.

Questions & connections

Understand it, compare it, then explore further

Start with the most common factual questions, then compare closely related observances and explore useful connections.

Reader questions

Frequently asked questions

When is Mesothelioma Awareness Day?

26 September annually The documented recurrence rule is: 26 September.

Does Mesothelioma Awareness Day fall on the same date every year?

Yes. It uses a fixed annual date unless stronger evidence changes the pattern.

Is Mesothelioma Awareness Day an official public holiday?

The reviewed sources verify it within this scope: United States-centered organizer campaign with state/local proclamations. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.

Who established or recognizes Mesothelioma Awareness Day?

The reviewed sources identify Mesothelioma Applied Research Foundation community as the proclaiming or establishing body. Current facilitation or coordination is recorded as Mesothelioma Applied Research Foundation.

Is Mesothelioma Awareness Day international or country-specific?

No single country is assigned to this observance. Its documented scope is: United States-centered organizer campaign with state/local proclamations. Use that scope rather than assuming worldwide or country-specific status.

How is this page verified?

The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-10-02.

When is Mesothelioma Awareness Day?

It is observed annually on September 26.

When was it established?

The Mesothelioma Applied Research Foundation says its community established the awareness day in 2004.

What is mesothelioma?

It is a cancer of the mesothelium, the tissue lining certain internal organs.

Can this page assess symptoms or asbestos exposure?

No. It is general awareness information and cannot diagnose disease or provide individualized medical advice.

Explore further

Related observances with useful context

More in this topic →

Related observances are selected from shared topics, scope and documented connections. Where an important difference is known, it is labeled separately so “related” is not mistaken for “the same observance.”

Same date

Other observances on September 26

Date guide →

These observances are also listed on September 26, 2027.

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European Day of Languages

Council of Europe language-learning and linguistic-diversity observance

Council of Europe records establish the first 26 September 2001 edition and the Committee of Ministers decision of 6 December 2001 making the day annual.

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Gold Star Mother's and Family's Day

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The 2025 presidential proclamation uses Gold Star Mother's and Family's Day; 36 U.S.C. §111 separately designates the last Sunday in September as Gold Star Mother's Day.

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HR Professionals Day

Workplace/professional recognition observance

Hofstra University and employer professional communications identify September 26 as HR/Human Resource Professional Day.

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National Dumpling Day

United States / TMI Food Group-founded food observance

National Day Calendar records September 26 as National Dumpling Day and says TMI Food Group submitted the observance in 2015.

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National Law Enforcement Suicide Awareness Day

United States / law-enforcement mental-health awareness

FBI outreach material identifies September 26 as National Law Enforcement Suicide Awareness Day; Blue H.E.L.P. states the day was created to remember officers lost to suicide and reduce sti…