Explanation

International Day of Peace (or World Peace Day), celebrated  on September 21st each year,

 dedicated to strengthening the ideal of peace between all nations and people.

International Day of Peace Established in 1981 by United Nations resolution

Theme 2025: Act now for a peaceful World

Theme 2026: Invest in Peace – For Everyone, Everywhere, Every Day

***

Explanation

•  World Alzheimer Day is observed on 21 September to raise awareness about the challenges that patient faces due to dementia.
• Theme 2025: Ask About Dementia, Ask about Alzheimer's
• Theme 2026: The Earlier You Know, The More You Can Do: A Dementia Diagnosis Matters
• ***

Explanation

World Bamboo Day was officially established on September 18 at the 8th World Bamboo Congress held in Bangkok in 2009 and declared by the Thai Royal Forest Department.

***

Explanation

World Pharmacists Day is annually celebrated on September 25 annually.

It is celebrated with the purpose to raise awareness about the essential contributions of pharmacists to public health.

It is celebrated to commemorate the founding of International Pharmaceutical Federation (FIP) in 1912.

***

Explanation

World Maritime Day is celebrated on last Thursday of September. 

In 2026, it was celebrated on 24 September.

Theme 2026: From Policy to Practice: Powering Maritime Excellence

*****