Observance guideSource-backed

State Inauguration Day2026 · Date · History

Nagaland government sources identify 1 December 1963 as the formal inauguration of the State of Nagaland and continue to commemorate 1 December as Statehood Day; the State of Nagaland Act, 1962 provides the legal state-formation framework.

Annual dateReviewed 2026-10-01Sensitive topic

About State Inauguration Day

State Inauguration Day in Nagaland is a 1 December commemoration of the formal inauguration of the State of Nagaland in 1963. Current Nagaland government materials commonly describe the occasion as Statehood Day.

Nagaland government history identifies 1 December 1963 as the date the state was formally inaugurated as the 16th state of the Indian Union.

Why State Inauguration Day matters

The day marks a constitutional and administrative milestone in Nagaland’s state history rather than the anniversary of one private campaign or organization.

The State of Nagaland Act, 1962 provides the legal framework for forming the state, while the annual 1 December commemoration reflects the date on which the new state was formally inaugurated.

History of State Inauguration Day

Parliament enacted the State of Nagaland Act, 1962 to provide for formation of the State of Nagaland.

Nagaland government sources state that the state was formally inaugurated on 1 December 1963 as the 16th state of the Indian Union.

Current state-government communications continue to mark 1 December as Nagaland Statehood Day.

The reviewed evidence establishes the state-formation milestone and recurring anniversary, but it does not establish a single creator or the first edition of an annual event branded with the legacy label “State Inauguration Day.”

Origins & establishment

What the evidence establishes

Evidence & sources ↓

Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.

Current facilitator / coordinatorGovernment of NagalandCurrent Nagaland government communications continue to commemorate 1 December as Statehood Day.
Why this exact date?1 December is the anniversary of the formal inauguration of the State of Nagaland on 1 December 1963.Nagaland government history explicitly dates the formal inauguration to 1 December 1963.
7 fields not established in reviewed sources
Originator / proposerThe reviewed sources establish the statehood milestone but do not identify a single proposer of the recurring annual commemoration.
Proclaiming / establishing bodyThe State of Nagaland Act formed the state; it is not treated here as an instrument that separately created an annual Statehood Day observance.
Original establishing instrument / decisionNo separate instrument establishing the recurring annual commemoration is identified. The State of Nagaland Act, 1962 is retained as the legal state-formation instrument.
Original instrument adoption / decision dateNo separate annual-observance establishing instrument date is established.
First observance1 December 1963 is the state inauguration date, but the first recurring annual Statehood Day edition is not established by the reviewed sources.
Former nameThe reviewed sources do not establish a formal name-change lifecycle for the annual commemoration.
Former dateNo former recurring date is established.
Source qualityHigh confidence
3 Primary institutional / legal
View all sources ↓
Names

Also known as

State Inauguration Day in Nagaland

How to Observe State Inauguration Day

01

Read the Nagaland government’s state profile to understand the 1 December 1963 inauguration milestone.

02

Consult the State of Nagaland Act, 1962 for the legal framework behind formation of the state.

03

Follow current Nagaland government notices for official statehood-day programmes or public arrangements.

04

Learn about the institutions and administrative history that followed state formation.

05

Keep Statehood Day separate from other December events in Nagaland, which may have different purposes and histories.

State Inauguration Day Facts

Fact 01

The recurring date is 1 December.

Fact 02

Nagaland government sources date the state’s formal inauguration to 1 December 1963.

Fact 03

The State of Nagaland Act, 1962 is the central legal state-formation instrument identified in India Code.

Fact 04

Current Nagaland government material uses “Statehood Day” for the annual 1 December commemoration.

Fact 05

The reviewed evidence does not identify one founder of the annual commemoration.

Classification

Topic and context

Civic, Remembrance & History →
Accuracy notes

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

Evidence & sources

Source policy →

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.

Questions & connections

Understand it, compare it, then explore further

Start with the most common factual questions, then compare closely related observances and explore useful connections.

Reader questions

Frequently asked questions

When is State Inauguration Day?

1 December The documented recurrence rule is: 1 December.

Does State Inauguration Day fall on the same date every year?

Yes. It uses a fixed annual date unless stronger evidence changes the pattern.

Is State Inauguration Day an official public holiday?

The reviewed sources verify it within this scope: Nagaland / annual 1 December statehood and inauguration commemoration. 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 State Inauguration Day?

The documented basis is: Nagaland government sources identify 1 December 1963 as the formal inauguration of the State of Nagaland and continue to commemorate 1 December as Statehood Day; the State of Nagaland Act, 1962 provides the legal state-formation framework.. Supporting evidence includes Nagaland State Portal — Nagaland Profile. The site does not infer a separate creator or founder unless reviewed evidence establishes one.

Is State Inauguration Day international or country-specific?

No single country is assigned to this observance. Its documented scope is: Nagaland / annual 1 December statehood and inauguration commemoration. Use that scope rather than assuming worldwide or country-specific status.

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 2026-10-01.

When is State Inauguration Day in Nagaland?

The commemoration falls on 1 December, the anniversary of Nagaland’s formal inauguration as a state on 1 December 1963.

What happened on 1 December 1963?

Nagaland government sources state that the State of Nagaland was formally inaugurated that day as the 16th state of the Indian Union.

What legal instrument formed Nagaland as a state?

The State of Nagaland Act, 1962 provided for formation of the state. The annual anniversary and the legal formation instrument are related but are not the same thing.

Is this also called Nagaland Statehood Day?

Current Nagaland government communications commonly refer to the 1 December anniversary as Nagaland Statehood Day.

Explore further

Related observances with useful context

More in this topic →

Related observances are selected from shared topics, scope and documented connections. Where an important difference is known, it is labeled separately so “related” is not mistaken for “the same observance.”

Same date

Other observances on December 1

Date guide →

These observances are also listed on December 1, 2026.

Source-backedFixed AnnualIn-depth guide

Central African Republic national day / Republic Day

Central African Republic / national day

The Central African Republic government identifies 1 December 1958 as the date of proclamation of the Republic, and current diplomatic references list 1 December as the national day.

Source-backedFixed AnnualIn-depth guide

Day of the First President of the Republic of Kazakhstan

Kazakhstan / official commemorative holiday date; no longer a non-working national/state public holiday under the current holidays law

Kazakhstan’s 2011 law created December 1 First President’s Day as a state holiday; 2022 legal changes removed it from the non-working holiday law and Government Resolution No. 956 retained…

Source-backedFixed AnnualIn-depth guide

Dia da Restauração da Independência

Portugal / national restoration commemoration and holiday

Portugal’s Armed Forces commemorated Dia da Restauração da Independência on 1 December 2025, marking the restoration of national sovereignty in 1640; the Government’s national-holiday regis…

Source-backedFixed AnnualIn-depth guide

Freedom and Democracy Day

Chad / national commemoration and national-holiday framework

Chad’s Prime Minister’s office documented the official 1 December 2025 commemoration of the 35th Freedom and Democracy Day, and current constitutional/journal-official material lists 1 Dece…

Source-backedFixed AnnualIn-depth guide

Indigenous Faith Day

Arunachal Pradesh, India / state government holiday calendar

Arunachal Pradesh government holiday calendars list Indigenous Faith Day on 1 December, including the 2024 notification and 2026 state portal calendar.

Source-backedFixed AnnualIn-depth guide

National Day

Romania / statutory National Day and legal public holiday

Romania’s Law No. 10 of 31 July 1990 proclaims 1 December the National Day and repeals the former 23 August national-holiday decision; Romanian government material connects 1 December with…