Arizona Statehood Day2026 · Date · History · Messages
The State of Arizona Research Library’s Arizona Memory Project identifies February 14, 1912 as Arizona Statehood Day and records Arizona becoming the 48th state that day. This guide treats the modern page as a statehood anniversary and historical civic observance, not as evidence of a current statutory public holiday.
About Arizona Statehood Day
Arizona Statehood Day marks February 14, the anniversary of Arizona becoming the 48th state of the United States in 1912.
The State of Arizona Research Library’s Arizona Memory Project uses “Arizona Statehood Day” for the February 14, 1912 event and preserves photographs and records from that date.
Why Arizona Statehood Day matters
The date is a civic and historical anniversary centered on Arizona’s admission to statehood.
This guide does not treat the archival label as proof that February 14 is a current statutory public holiday in Arizona.
History of Arizona Statehood Day
Arizona’s territorial period preceded statehood by decades.
On February 14, 1912, President William Howard Taft signed the statehood measure and Arizona became the 48th state.
Arizona archival collections identify the date and event as Arizona Statehood Day and preserve contemporary images of statehood ceremonies in Phoenix.
Later anniversary programs and archival collections continue the public historical memory of statehood.
The reviewed sources do not establish a separate legal act creating an annual public holiday called Arizona Statehood Day, so that claim is not made.
What the evidence establishes
Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.
8 fields not established in reviewed sources
Also known as
Statehood Day in Arizona
How to Observe Arizona Statehood Day
Explore the Arizona Memory Project’s statehood collections and primary-source photographs.
Read about the constitutional and territorial steps that preceded Arizona’s admission to the Union.
Visit a museum, archive, library, or historical site that presents Arizona history and follow preservation and photography rules.
Compare contemporary 1912 records with later anniversary interpretations to see how public memory develops.
Discuss statehood history factually without turning a historical anniversary guide into present-day partisan advocacy.
Arizona Statehood Day Facts
Arizona became the 48th U.S. state on February 14, 1912.
The Arizona Memory Project labels the event Arizona Statehood Day.
President William Howard Taft signed the statehood measure on February 14, 1912.
Arizona’s state archive preserves photographs and documents connected with the 1912 statehood ceremonies.
The reviewed sources do not establish February 14 as a current statewide statutory public holiday.
Arizona Statehood Day Messages
May Arizona’s statehood anniversary encourage careful reading of primary sources and the many communities that shaped the state’s history.
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.
Evidence & sources
Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.
Arizona Memory Project — Arizona Statehood Day (opens in a new tab)
State Government
Arizona Memory Project — This Day in Arizona History, February 14 (opens in a new tab)
State Government
Understand it, compare it, then explore further
Start with the most common factual questions, then compare closely related observances and explore useful connections.
Frequently asked questions
When is Arizona Statehood Day?
14 February; Arizona admitted as a state in 1912 The documented recurrence rule is: 14 February; Arizona admitted as a state in 1912.
Does Arizona Statehood Day fall on the same date every year?
Yes. It uses a fixed annual date unless stronger evidence changes the pattern.
Is Arizona Statehood Day an official public holiday?
The reviewed sources verify it within this scope: Arizona, United States / statehood anniversary. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.
Who established or recognizes Arizona Statehood Day?
The documented basis is: The State of Arizona Research Library’s Arizona Memory Project identifies February 14, 1912 as Arizona Statehood Day and records Arizona becoming the 48th state that day. This guide treats the modern page as a statehood anniversary and historical civic observance, not as evidence of a current statutory public holiday.. Supporting evidence includes Arizona Memory Project — Arizona Statehood Day. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is Arizona Statehood Day international or country-specific?
This observance is specific to United States. Its fuller verified scope is: Arizona, United States / statehood anniversary.
How is this page verified?
The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-09-23.
When is Arizona Statehood Day?
It is associated with February 14, the date Arizona became a state in 1912.
What happened on February 14, 1912?
Arizona officially became the 48th state of the United States.
Does the Arizona state archive use the name Arizona Statehood Day?
Yes. The Arizona Memory Project has an event record titled Arizona Statehood Day for February 14, 1912.
Is this guide saying February 14 is a statutory public holiday in Arizona?
No. The reviewed archival sources establish the historical anniversary identity, not a current statewide public-holiday rule.
Where can I find primary-source material?
The Arizona Memory Project of the State of Arizona Research Library preserves statehood photographs and related records.
Other observances on February 14
These observances are also listed on February 14, 2027.
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International Book Giving Day
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League of Women Voters founding anniversary
League of Women Voters first-party history establishes Carrie Chapman Catt’s 1919 proposal and formal organization of the national League in Chicago on 14 February 1920. The organization co…
Library Lovers’ Day
ALIA verifies February 14 annually, inception in 2006 by the State Library of New South Wales and current ALIA promotion/support with local library adaptation.