Explanation

World Animal Day is celebrated on October 4.

This day is celebrated to promote animal rights.

Theme 2025: Save animals, Save the planet!

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Explanation

World Post day is observed on October 9 to mark the anniversary of the establishment of the Universal Postal Union on 9 October 1874 in Switzerland.

Theme 2024: 150 years of enabling communication and empowering peoples across nations 

Theme 2025: Post For People: Local Service. Global Reach

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Explanation

World Post day is observed on October 9 to mark the anniversary of the establishment of the Universal Postal Union on 9 October 1874 in Switzerland.

Theme 2024: 150 years of enabling communication and empowering peoples across nations 

Theme 2025: Post For People: Local Service. Global Reach

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Explanation

Every year, the United Nations Day is celebrated on 24 October to mark the anniversary of the UN charter, which came into force in 1945.

Explanation

World Space Week is a global celebration of space science, technology, and their contributions to humanity. 

This annual event takes place between Oct 4 and Oct 10 and is organized by the United Nations and the World Space Week Association (WSWA).