National Washington Day
National Day Calendar lists National Washington Day on 10 May. The U.S. Senate records Washington’s admission/statehood date as 11 November 1889. These are separate facts: the calendar listing is an informal creator-defined observance and is not evidence of a federal or Washington government holiday designation.
Date and recurrence
10 May
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 United States / National Day Calendar National State Days series — Washington. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.
Also known as
National Washington Day
Topic and context
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.
- Remembrance Civic Context Care.
Sources
- National Day Calendar — National Washington DayCreator Observance Registry
- U.S. Senate — Washington state historyFederal Legislative History
Frequently asked questions
When is National Washington Day?
10 May The stored recurrence guidance is: 10 May under the National Day Calendar National State Days series..
Does National Washington 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 National Washington Day an official public holiday?
The authority record verifies it within this scope: United States / National Day Calendar National State Days series — Washington. 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 National Washington Day?
The stored designation basis is: National Day Calendar lists National Washington Day on 10 May. The U.S. Senate records Washington’s admission/statehood date as 11 November 1889. These are separate facts: the calendar listing is an informal creator-defined observance and is not evidence of a federal or Washington government holiday designation.. Supporting provenance includes National Day Calendar — National Washington Day. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is National Washington Day international or country-specific?
This authority record is country-scoped to United States. Its fuller verified scope is: United States / National Day Calendar National State Days series — Washington.
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 2026-09-10.
Other observances on May 10
These records also resolve to May 10, 2027 under the current authority data.
Día de las Madres in Mexico
Mexico’s National Population Council documents Día de las Madres on May 10 and traces the Mexican commemoration to 1922.
FSM Constitution Day
The FSM Government’s Constitution Day messages identify May 10 with the coming into force of the Constitution in 1979 and continue to mark FSM Constitution Day in current government communi…
International Day of Argania
A/RES/75/262
National Clean Your Room Day
National Today uses National Clean Your Room Day on May 10, while National Day Calendar uses the closely matching name National Clean Up Your Room Day on the same annual date.
National Independence Day of Romania (Ziua Independenței Naționale a României)
A 2026 Romanian prefecture notice states that, following Law 189/2021, the Romanian state has commemorated National Independence Day every year on 10 May since 2022.
National Miniature Golf Day
National Day Archives lists National Miniature Golf Day on May 10; the shorter public “Mini Golf” title is treated as an alias.