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Día de la Soberanía Nacional (National Sovereignty Day)2026 · Date · History · Messages

Argentina’s Casa Rosada states that every 20 November the country commemorates National Sovereignty Day in memory of the Battle of Vuelta de Obligado.

Annual dateReviewed 2026-09-08Sensitive topic

About Día de la Soberanía Nacional (National Sovereignty Day)

Argentina commemorates Día de la Soberanía Nacional on 20 November.

Current Law 27,399 lists 20 November, National Sovereignty Day, among Argentina’s transferable national holidays.

Why Día de la Soberanía Nacional (National Sovereignty Day) matters

The date commemorates the Combat of Vuelta de Obligado, fought on 20 November 1845.

The historical event, the 1974 declaration of the commemorative day and its later national-holiday status are separate stages in the observance’s legal history.

History of Día de la Soberanía Nacional (National Sovereignty Day)

The Combat of Vuelta de Obligado was fought on 20 November 1845.

Law 20,770, sanctioned on 26 September 1974 and published on 16 October 1974, declared 20 November of each year Día de la Soberanía in commemoration of Vuelta de Obligado.

Decree DNU 1584/2010, dated 2 November 2010, incorporated 20 November as a national holiday.

Law 27,399, sanctioned on 27 September 2017, replaced the 2010 decree and currently lists 20 November as Día de la Soberanía Nacional among transferable national holidays.

Institutional timeline

How the observance developed

This timeline uses documented milestones from reviewed sources. Missing stages are left out rather than guessed.

  1. Establishment

    National Congress of Argentina

    Law 20,770

  2. Other Material Change

    Incorporated 20 November, Día de la Soberanía Nacional, into the national-holiday calendar.

    President of Argentina in General Agreement of Ministers · Decree DNU 1584/2010

  3. Superseding Instrument

    Replaced Decree 1584/2010 and retained 20 November as a transferable national holiday.

    National Congress of Argentina · Law 27,399

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.

Proclaiming / establishing bodyNational Congress of ArgentinaLaw 20,770 was enacted by Argentina’s National Congress.
Original establishing instrument / decisionLaw 20,770The law declares 20 November of each year Día de la Soberanía in commemoration of the Combat of Vuelta de Obligado.
Original instrument adoption / decision date26 September 1974 (sanctioned; published 16 October 1974)The official legal database gives both sanction and publication dates.
Why this exact date?20 November commemorates the Combat of Vuelta de Obligado fought on 20 November 1845.Law 20,770 explicitly gives the battle and its date as the reason for the annual commemoration.
5 fields not established in reviewed sources
Originator / proposerThe reviewed legal sources do not identify one individual originator or proposer of the recurring observance.
Current facilitator / coordinatorNational institutions commemorate the date, but the reviewed sources do not establish one exclusive permanent organizer.
First observanceThe establishing law does not explicitly identify the first recurring observance after enactment.
Former nameNo distinct former formal name is established in the reviewed legal sources.
Former dateNo former recurring date is established in the reviewed legal sources.

Later institutional actions

Later recognition, renaming, mergers or date changes are kept separate from original establishment.

Other Material ChangeIncorporated 20 November, Día de la Soberanía Nacional, into the national-holiday calendar.President of Argentina in General Agreement of Ministers · Decree DNU 1584/2010 · 2 November 2010The decree expressly lists 20 November as a national holiday and explains that it incorporates the Vuelta de Obligado commemoration.
Superseding InstrumentReplaced Decree 1584/2010 and retained 20 November as a transferable national holiday.National Congress of Argentina · Law 27,399 · 27 September 2017Article 1 lists 20 November among transferable national holidays and Article 9 repeals Decree 1584/2010.
Source qualityHigh confidence
3 Primary institutional / legal
View all sources ↓
Names

Also known as

National Sovereignty Day

How to Observe Día de la Soberanía Nacional (National Sovereignty Day)

01

Use the current holiday law when explaining present legal status and transfer rules.

02

Use Law 20,770 when describing the original 1974 declaration of the recurring commemorative day.

03

Separate the 1845 historical event from later legal recognition and holiday scheduling.

04

Keep descriptions of sovereignty and the battle factual and source-attributed rather than turning the civic observance into present-day political advocacy.

Día de la Soberanía Nacional (National Sovereignty Day) Facts

Fact 01

National Sovereignty Day is dated 20 November.

Fact 02

Law 20,770 declared the date in 1974 in memory of the Combat of Vuelta de Obligado.

Fact 03

Decree DNU 1584/2010 made 20 November a national holiday.

Fact 04

Law 27,399 currently lists the date as a transferable national holiday.

Fact 05

The date anchor is the 20 November 1845 Combat of Vuelta de Obligado.

Día de la Soberanía Nacional (National Sovereignty Day) Messages

May Día de la Soberanía Nacional be approached with accurate history, careful sourcing and respect for differing interpretations of the past.

Classification

Topic and context

Civic, Remembrance & History →
Civic, Remembrance & HistoryCivic Public Life
Related topic pathsCommunity, Causes & AdvocacyFaith, Tradition & SpiritualityCelebrations & Social
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 Día de la Soberanía Nacional (National Sovereignty Day)?

20 November annually; observed-holiday scheduling can differ from the commemoration date The documented recurrence rule is: 20 November.

Does Día de la Soberanía Nacional (National Sovereignty Day) fall on the same date every year?

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

Is Día de la Soberanía Nacional (National Sovereignty Day) an official public holiday?

The reviewed sources verify it within this scope: Argentina / national civic 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 Día de la Soberanía Nacional (National Sovereignty Day)?

The reviewed sources identify National Congress of Argentina as the proclaiming or establishing body.

Is Día de la Soberanía Nacional (National Sovereignty Day) international or country-specific?

This observance is specific to Argentina. Its fuller verified scope is: Argentina / national civic commemoration.

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 2026-09-08.

When is National Sovereignty Day in Argentina?

It is commemorated on 20 November.

Why is it on November 20?

Law 20,770 ties the date to the Combat of Vuelta de Obligado, fought on 20 November 1845.

Is National Sovereignty Day a national holiday in Argentina?

Yes. Current Law 27,399 lists 20 November as Día de la Soberanía Nacional among the transferable national holidays.

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