Source-backedRule Based Annual

Stepmother's Day

The original family account states that nine-year-old Lizzie chose the Sunday after Mother's Day for Stepmother's Day in 2000 and records subsequent acknowledgement in the Congressional Record.

Date / ruleSunday after Mother's Day
ScopeUnited States / informal family observance originating in 2000
VerificationCreator History Primary Source Verified
PortabilityRule Based Annual
Evidence statusSource-backed
Last authority check2026-09-10
Target-year policyCalculate Rule
Authority summary

What is Stepmother's Day?

The original family account states that nine-year-old Lizzie chose the Sunday after Mother's Day for Stepmother's Day in 2000 and records subsequent acknowledgement in the Congressional Record.

Date and recurrence

Sunday after Mother's Day

This observance follows a reusable calendar rule rather than one fixed Gregorian date. The actual date can move from year to year. Rule: Sunday after U.S. Mother's Day.

Scope and status

The verified scope stored for this record is United States / informal family observance originating in 2000. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.

Also known as

Stepmother’s Day, Stepmother's Day

Classification

Topic and context

Relationships & Family →
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.
Provenance

Sources

Source policy →
  1. Annie's Homepage — How Stepmother's Day BeganCreator History Primary
Reader questions

Frequently asked questions

When is Stepmother's Day?

Sunday after Mother's Day The stored recurrence guidance is: Sunday after U.S. Mother's Day..

Does Stepmother's Day fall on the same date every year?

It follows a recurring calendar rule, so the Gregorian date can change from year to year.

Is Stepmother's Day an official public holiday?

The authority record verifies it within this scope: United States / informal family observance originating in 2000. 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 Stepmother's Day?

The stored designation basis is: The original family account states that nine-year-old Lizzie chose the Sunday after Mother's Day for Stepmother's Day in 2000 and records subsequent acknowledgement in the Congressional Record.. Supporting provenance includes Annie's Homepage — How Stepmother's Day Began. The site does not infer a separate creator or founder unless reviewed evidence establishes one.

Is Stepmother's Day international or country-specific?

This authority record is country-scoped to United States. Its fuller verified scope is: United States / informal family observance originating in 2000.

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.

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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.”