National Delaware Day2026 · Date · History · Messages
National Day Calendar lists National Delaware Day on July 13 within its privately created National State Days series. Delaware’s December 7, 1787 statehood date is kept separate, and Indigenous/Tribal history is retained through institutional or legal sources.
About National Delaware Day
National Delaware Day is a creator-defined observance in National Day Calendar’s National State Days series, observed on July 13.
It is separate from Delaware’s December 7, 1787 admission/statehood date and should not be presented as an official state-government holiday without separate legal authority.
Why National Delaware Day matters
The day can be used to explore Delaware’s communities, places, cultures and history while keeping the observance’s private creator-defined identity clear.
Delaware law recognizes the Nanticoke Indian Tribe of Delaware and the Lenape Indian Tribe of Delaware, providing a present-day Tribal context that should not be erased by a statehood-only narrative.
History of National Delaware Day
For National Delaware Day, National Day Calendar says it created the National State Days series in 2017, beginning with Delaware and moving through states in admission order with calendar exceptions.
The creator registry places National Delaware Day on July 13.
Federal/state historical sources record Delaware’s statehood on December 7, 1787.
The observance date and Delaware’s statehood anniversary are therefore separate calendar identities.
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 introduced in 2017.
National Day Calendar
The creator’s series history attributes the initiative to National Day Calendar; no government establishing body is implied.
National Day Calendar
National Day Calendar continues to publish National Delaware Day and its annual date.
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 Delaware Day
How to Observe National Delaware Day
Use museums, libraries, Tribal or Native-nation resources, archives and other reputable Delaware institutions to learn about the state.
Explore Delaware beyond a single settlement, tourism or statehood narrative.
When learning about National Delaware Day, include continuing Indigenous histories and communities when discussing the state’s past and present.
Describe July 13 accurately as National Day Calendar’s observance rather than implying a statutory state closure or government-created holiday.
National Delaware Day Facts
National Delaware Day is observed on July 13 in National Day Calendar’s series.
National Delaware Day appears in the National Day Calendar state-day series, which the publisher says began in 2017.
Delaware joined the Union on December 7, 1787.
For National Delaware Day, Delaware law recognizes the Nanticoke Indian Tribe of Delaware and the Lenape Indian Tribe of Delaware, providing a present-day Tribal context that should not be erased by a statehood-only narrative.
The reviewed evidence supports a private creator-defined observance, not a statutory Delaware holiday.
National Delaware Day Messages
Learn about Delaware through local, Tribal, cultural and historical institutions rather than a single simplified story.
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.
Delaware Code — Nanticoke and Lenape recognition
U.S. Senate — Delaware state history
National Day Calendar — National Delaware Day
National Day Calendar — National State Days series history
Delaware Code — Nanticoke and Lenape recognition (opens in a new tab)
Government Indigenous History
National Day Calendar — National Delaware Day (opens in a new tab)
Creator Observance Registry
National Day Calendar — National State Days series history (opens in a new tab)
Creator Series History
U.S. Senate — Delaware 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 Delaware Day?
13 July The documented recurrence rule is: 13 July under the National Day Calendar National State Days series..
Does National Delaware Day fall on the same date every year?
Yes. It uses a fixed annual date unless stronger evidence changes the pattern.
Is National Delaware Day an official public holiday?
The reviewed sources verify it within this scope: United States / National Day Calendar National State Days series — Delaware. 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 Delaware 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 Delaware 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 — Delaware.
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 2026-09-25.
When is National Delaware Day?
National Day Calendar places it on July 13.
Is that Delaware’s statehood anniversary?
No. Delaware’s statehood/admission date is December 7, 1787.
Who created the National State Days series?
National Day Calendar says it created the series in 2017 and sequenced states by admission order with calendar exceptions.
Is National Delaware Day an official state holiday?
The reviewed sources establish a National Day Calendar observance, not a statutory Delaware government holiday.
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