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United Nations Marks 80th Anniversary of Charter Signing

The United Nations on Saturday highlighted the 80th anniversary of its founding Charter. The document was signed in San Francisco on 26 June 1945 and entered into force on 24 October 1945.

UN
1 source·May 23, 12:01 PM(6 days ago)·1m read
United Nations Marks 80th Anniversary of Charter Signingnippon.com
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The United Nations on Saturday posted images of the preamble to its founding Charter, noting that 50 nations gathered in San Francisco in 1945 to establish the organization. The Charter was signed on 26 June 1945 at the conclusion of the United Nations Conference on International Organization. It took effect on 24 October 1945.

The document sets out the purposes and principles of the United Nations, including the sovereign equality of states and the prohibition on the use of force in international relations. It functions as an international treaty binding on all member states.

The Charter has been amended three times, in 1963, 1965, and 1973. The International Court of Justice operates under a statute annexed to the Charter. The organization stated that the principles contained in the Charter have guided its work since 1945.

Key Facts

50 nations
attended the 1945 San Francisco conference
26 June 1945
date the Charter was signed
24 October 1945
date the Charter took effect
Three amendments
adopted in 1963, 1965, and 1973

Story Timeline

3 events
  1. 26 June 1945

    Fifty nations signed the UN Charter in San Francisco.

    1 source@UN
  2. 24 October 1945

    The UN Charter entered into force.

    1 source@UN
  3. 2025

    The United Nations posted images of the Charter preamble marking its 80th year.

    1 source@UN

Transparency Panel

Sources cross-referenced1
Confidence score75%
Synthesized bySubstrate AI
Word count138 words
PublishedMay 23, 2026, 12:01 PM
Bias signals removed1 across 1 outlet
Signal Breakdown
Editorializing 1

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