Wikipedia Day / Wikipedia birthday
Wikimedia’s official Meta-Wiki 25th-birthday calendar documents celebrations on 15 January 2026, the anniversary of Wikipedia’s launch.
Date and recurrence
15 January annually; 15 January 2026 marked Wikipedia’s 25th birthday
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 Wikimedia community / Wikipedia founding anniversary. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.
Also known as
Wikipedia 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.
Sources
- Wikimedia Meta-Wiki — Wikipedia 25 eventsFirst Party Community
Frequently asked questions
When is Wikipedia Day / Wikipedia birthday?
15 January annually; 15 January 2026 marked Wikipedia’s 25th birthday The stored recurrence guidance is: 15 January.
Does Wikipedia Day / Wikipedia birthday 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 Wikipedia Day / Wikipedia birthday an official public holiday?
The authority record verifies it within this scope: Wikimedia community / Wikipedia founding anniversary. 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 Wikipedia Day / Wikipedia birthday?
The stored designation basis is: Wikimedia’s official Meta-Wiki 25th-birthday calendar documents celebrations on 15 January 2026, the anniversary of Wikipedia’s launch.. Supporting provenance includes Wikimedia Meta-Wiki — Wikipedia 25 events. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is Wikipedia Day / Wikipedia birthday international or country-specific?
No single country is assigned to this record in the authority dataset. The source-defined scope is: Wikimedia community / Wikipedia founding anniversary. Use that scope rather than assuming worldwide or country-specific status.
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 2026-09-07.
Other observances on January 15
These records also resolve to January 15, 2027 under the current authority data.
Alpha Kappa Alpha Founders’ Day
Alpha Kappa Alpha’s official history states the sorority was founded on 15 January 1908, and its first-party calendar/materials use Founders’ Day for the anniversary. The inventory wording…
Army Day (India)
India's Press Information Bureau states that Army Day is celebrated every year on January 15 and documents current Army Day observances.
Strawberry Ice Cream Day
ANFP chapter calendar material lists Strawberry Ice Cream Day on January 15.