Source-backedFixed AnnualHeightened editorial care

World AUTOimmune & AUTOinflammatory Arthritis Day

AiArthritis identifies 20 May as World AUTOimmune & AUTOinflammatory Arthritis Day and says the awareness day was established in 2012.

Date / rule20 May annually
ScopeGlobal / International Foundation for Autoimmune & Autoinflammatory Arthritis campaign
VerificationFirst Party Recurring Alias Verified
PortabilityFixed Annual
Evidence statusSource-backed
Last authority check2026-09-08
Target-year policyReuse Fixed
Next date this engine can safely resolveThursday, May 20, 2027See everything on May 20 →
Authority summary

What is World AUTOimmune & AUTOinflammatory Arthritis Day?

AiArthritis identifies 20 May as World AUTOimmune & AUTOinflammatory Arthritis Day and says the awareness day was established in 2012.

Date and recurrence

20 May annually

This authority record treats the observance as a fixed annual date. The same month and day can be reused unless a stronger source changes the rule.

Scope and status

The verified scope stored for this record is Global / International Foundation for Autoimmune & Autoinflammatory Arthritis campaign. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.

Also known as

World Autoimmune Arthritis Day

Classification

Topic and context

Health, Wellness & Awareness →
Accuracy controls

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.
Provenance

Sources

Source policy →
  1. AiArthritis — World AUTOimmune & AUTOinflammatory Arthritis DayFirst Party Health Nonprofit
  2. AiArthritis — Awareness DaysFirst Party Health Nonprofit
Reader questions

Frequently asked questions

When is World AUTOimmune & AUTOinflammatory Arthritis Day?

20 May annually The stored recurrence guidance is: 20 May.

Does World AUTOimmune & AUTOinflammatory Arthritis Day fall on the same date every year?

The authority record classifies it as fixed annual, so its month and day are reusable unless stronger evidence changes the rule.

Is World AUTOimmune & AUTOinflammatory Arthritis Day an official public holiday?

The authority record verifies it within this scope: Global / International Foundation for Autoimmune & Autoinflammatory Arthritis campaign. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when the supporting authority record explicitly does so.

Who established or recognizes World AUTOimmune & AUTOinflammatory Arthritis Day?

The stored designation basis is: AiArthritis identifies 20 May as World AUTOimmune & AUTOinflammatory Arthritis Day and says the awareness day was established in 2012.. Supporting provenance includes AiArthritis — World AUTOimmune & AUTOinflammatory Arthritis Day. The site does not infer a separate creator or founder unless reviewed evidence establishes one.

Is World AUTOimmune & AUTOinflammatory Arthritis Day international or country-specific?

The record has international or global institutional scope: Global / International Foundation for Autoimmune & Autoinflammatory Arthritis campaign. That does not mean every country treats the date as a public holiday or observes it in the same way.

How is this page verified?

The factual layer is source-backed and keeps its date rule, scope, provenance and editorial guardrails attached to the authority record. This record was checked on 2026-09-08.

Same date

Other observances on May 20

Date guide →

These records also resolve to May 20, 2027 under the current authority data.

Source-backedFixed Annual

Clinical Trials Day

International clinical-research professional community; coordinated by ACRP and sector partners

The Association of Clinical Research Professionals states Clinical Trials Day is observed annually on 20 May and documents its 2026 recognition initiative.

Source-backedFixed Annual

Independence Restoration Day

Timor-Leste / national public holiday and independence commemoration

Timor-Leste government material identifies 20 May as Independence Restoration Day and as a national holiday under the country’s public-holiday framework.

Source-backedRule Based Annual

National Aperitif Day

United States / informal aperitif observance

National Today and Checkiday independently define National Apéritif Day as the third Thursday in May each year.

Source-backedFixed Annual

National Day of Cameroon

Cameroon / National Day

The Presidency of Cameroon identifies May 20 as National Day and links the observance to the 1972 referendum establishing the Unitary State.

Explore further

Related observances with useful context

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Related records are selected from shared ontology signals. When a reviewed distinction exists, it is labeled separately so “related” is not mistaken for “the same observance.”