Explanation

World Malaria Day is observed on 25 April.

Theme 2022: Use Innovation to reduce the burden of malaria disease and save lives

Theme 2023: Time to Deliver Zero Malaria: Invest, Innovate, Implement

Explanation

• International Day of Action for Rivers: 14 March

• International Day of Action for Rivers Objective: to discuss the issues on river management, river pollution, river conservation

• International Day of Action for Rivers theme 2021: Rights of Rivers

• International Day of Action for Rivers theme 2022: The Importance of Rivers for Biodiversity
• Theme 2023: Rights of rivers

Explanation

International Day of Innocent Children Victims of Aggression is observed on 4 June annually.

The objective of the day is to acknowledge the pain of the children across the world who are the victims of physical, mental and emotional abuse. 

Explanation

• The World Organ Donation Day is observed globally on 13th August every year.
• This day is celebrated to raise awareness about the importance of organ donation and motivate people to donate organs after death. 
• Slogan 2024: Be the Reason for Someone's Smile Today!

Explanation

AIDS is a pandemic disease caused by the infection of (HIV), which damages the human immune system.

World AIDS Day is observed on 1 December since 1988.

Theme 2021: End Inequalities, End AIDS

Theme 2022: Equalize

Theme 2023: Let communities lead

Theme 2024: Take the rights path: My health, my right!

Explanation

International Day for Dialogue among Civilizations is celebrated on 10th of June.

This day has been designated by the United Nations (UN).

The day is celebrated to promote mutual respect and global solidarity.

On 10th June 2025, this day was celebrated for the first time. 

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Explanation

Nelson Mandela International Day is an annual international day in honour of Nelson Mandela, celebrated each year on 18 July, Mandela's birthday.

The day was officially declared by the United Nations in November 2009, with the first UN Mandela Day held on 18 July 2010. 

Theme 2022: Do What You Can, With What You Have, Where You Are

Explanation

World Thyroid Awareness Day is observed on 25 May annually. 

Thyroid: a disease

Theme 2022: Thyroid and Communication

Theme 2023: It's not you. It's your thyroid 

Theme 2024: Thyroid Diseases are NCDs

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Explanation

22 December night is the longest night of the year.

Explanation

United Nations International Day in Support of Victims of Torture: 26 June