Source-backedFixed AnnualHeightened editorial care

National South Dakota Day

National Day Calendar lists National South Dakota Day on 26 April. The U.S. Senate records South Dakota’s admission/statehood date as 2 November 1889. These are separate facts: the calendar listing is an informal creator-defined observance and is not evidence of a federal or South Dakota government holiday designation.

Date / rule26 April
ScopeUnited States / National Day Calendar National State Days series — South Dakota
VerificationCreator Registry Plus Federal History Verified
PortabilityFixed Annual
Evidence statusSource-backed
Last authority check2026-09-10
Target-year policyReuse Fixed
Next date this engine can safely resolveMonday, April 26, 2027See everything on April 26 →
Authority summary

What is National South Dakota Day?

National Day Calendar lists National South Dakota Day on 26 April. The U.S. Senate records South Dakota’s admission/statehood date as 2 November 1889. These are separate facts: the calendar listing is an informal creator-defined observance and is not evidence of a federal or South Dakota government holiday designation.

Date and recurrence

26 April

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 — South Dakota. 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 South Dakota Day

Classification

Topic and context

Civic, Remembrance & History →
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.
  • Remembrance Civic Context Care.
Provenance

Sources

Source policy →
  1. National Day Calendar — National South Dakota DayCreator Observance Registry
  2. U.S. Senate — South Dakota state historyFederal Legislative History
Reader questions

Frequently asked questions

When is National South Dakota Day?

26 April The stored recurrence guidance is: 26 April under the National Day Calendar National State Days series..

Does National South Dakota 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 South Dakota Day an official public holiday?

The authority record verifies it within this scope: United States / National Day Calendar National State Days series — South Dakota. 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 South Dakota Day?

The stored designation basis is: National Day Calendar lists National South Dakota Day on 26 April. The U.S. Senate records South Dakota’s admission/statehood date as 2 November 1889. These are separate facts: the calendar listing is an informal creator-defined observance and is not evidence of a federal or South Dakota government holiday designation.. Supporting provenance includes National Day Calendar — National South Dakota Day. The site does not infer a separate creator or founder unless reviewed evidence establishes one.

Is National South Dakota 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 — South Dakota.

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.

Same date

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