National Maine Day2026 · Date · History
National Day Calendar lists its private National Maine Day on December 21 and describes the National State Days series as beginning in 2017. Maine separately designates March 15 as Statehood Day; state resources also recognize Wabanaki peoples and homelands. The identities are kept separate.
About National Maine Day
National Maine Day is a creator-defined observance in National Day Calendar’s National State Days series, observed on December 21.
It is separate from Maine’s March 15, 1820 statehood/admission history and should not be presented as an official state-government holiday without separate legal authority.
Why National Maine Day matters
The day can be used to explore Maine’s communities, cultures, places and history while keeping the private calendar identity clear.
Maine’s history extends far beyond statehood; state sources recognize Wabanaki peoples and homelands as continuing parts of Maine’s past and present.
History of National Maine Day
For National Maine Day, National Day Calendar says it began the National State Days series in 2017 and schedules states through a staggered admission-order sequence with calendar exceptions.
The creator registry places National Maine Day on December 21.
Federal historical sources record Maine’s statehood/admission on March 15, 1820.
Maine law separately designates March 15 as Statehood Day; National Day Calendar’s December 21 National Maine Day is a different private calendar observance.
How the observance developed
This timeline uses documented milestones from reviewed sources. Missing stages are left out rather than guessed.
National Day Calendar
National Day Calendar identifies itself as creator of the National State Days series begun in 2017.
National Day Calendar
The creator attributes the private initiative to itself; no state-government establishing body is implied.
National Day Calendar
National Day Calendar continues to publish National Maine Day on December 21.
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.
5 fields not established in reviewed sources
Also known as
National Maine Day
How to Observe National Maine Day
Learn from Tribal/Native, museum, library, archive and other reputable institutions when exploring Maine history.
When learning about National Maine Day, include Indigenous histories and living communities rather than starting the story at U.S. statehood.
Describe December 21 accurately as National Day Calendar’s private observance and keep official government commemorations on their own dates.
When learning about National Maine Day, use source-bounded language for contested or painful historical events and avoid tourism-only or stereotype-based summaries.
National Maine Day Facts
National Maine Day is observed on December 21 in National Day Calendar’s National State Days series.
National Maine Day appears in the National Day Calendar state-day series, which the publisher says began in 2017.
Maine entered the Union on March 15, 1820.
Maine state resources identify Wabanaki peoples and homelands, including Penobscot, Passamaquoddy, Wolastoqiyik/Maliseet, Mi’kmaq and Abenaki histories and continuing presence.
For National Maine Day, the reviewed evidence supports a private creator-defined observance, not a statutory state-government holiday.
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.
Maine Secretary of State — Wabanaki Territory
Office of the Governor of Maine — Maine Statehood Day proclamation
U.S. Senate — Maine state history
National Day Calendar — National Maine Day
National Day Calendar — National State Days series history
Maine Secretary of State — Wabanaki Territory (opens in a new tab)
State Indigenous History
National Day Calendar — National Maine Day (opens in a new tab)
Creator Observance Registry
Office of the Governor of Maine — Maine Statehood Day proclamation (opens in a new tab)
State Legal Commemoration
Show 1 additional source reference
U.S. Senate — Maine state history (opens in a new tab)
Federal Legislative History
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 National Maine Day?
21 December The documented recurrence rule is: 21 December under the National Day Calendar National State Days series..
Does National Maine Day fall on the same date every year?
Yes. It uses a fixed annual date unless stronger evidence changes the pattern.
Is National Maine Day an official public holiday?
The reviewed sources verify it within this scope: United States / National Day Calendar National State Days series — Maine. 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 National Maine Day?
The reviewed sources identify National Day Calendar as the proclaiming or establishing body. Current facilitation or coordination is recorded as National Day Calendar.
Is National Maine Day international or country-specific?
This observance is specific to United States. Its fuller verified scope is: United States / National Day Calendar National State Days series — Maine.
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 2026-09-26.
When is National Maine Day?
National Day Calendar places it on December 21.
Is that Maine’s statehood anniversary?
No. Maine’s statehood/admission date is March 15, 1820.
Who created the National State Days series?
National Day Calendar says it began the private series in 2017 and schedules states through a staggered admission-order sequence with calendar exceptions.
Is National Maine Day an official state holiday?
The reviewed sources establish a private National Day Calendar observance. Any official Maine commemoration is a separate legal or historical identity and date.
Other observances on December 21
These observances are also listed on December 21, 2026.
Chester Greenwood Day
Maine law designates 21 December each year as Chester Greenwood Day, directs the governor to issue an annual proclamation, and traces the section to Public Law 1977, chapter 262.
December solstice (Northern Hemisphere winter solstice)
The U.S. Naval Observatory calculates the December 2026 solstice for December 21 at 20:50 Universal Time. USNO explains that solstices mark the beginning of summer and winter and that seaso…
National Coquito Day
Don Q Rum announced National Coquito Day as an annual December 21 observance and described the 2018 formalization of the day.
World Basketball Day
A/RES/77/324
World Meditation Day
A/RES/79/137