Explanation

World Mental Health Day (10 October) is an international day for global mental health education, awareness and advocacy against social stigma. It was first celebrated in 1992.

Theme 2025: Mental health in humanitarian emergencies

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Explanation

International Teachers Day is an international day held annually on October 5.

• Theme 2024: Valuing Teacher Voices: Towards a New Social Contract for Education
• Theme 2025: Recasting teaching as a collaborative profession

Explanation

World Cotton Day is observed on 7 October to recognize the importance of cotton worldwide.

First time clebrated on October 7, 2019.

Theme 2024: Cotton For Good 

Theme 2025: The Fabric of Our Lives

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Explanation

World Habitat Day is observed on First Monday of October annually.

In 2024, First Monday falls on 7th October. 

First observed in 1986 in Kenya. 

Theme 2025: Urban Crisis Response

Additional information: 

World Habitat Day focuses on the state of human settlements and on the basic right of all to adequate shelter. 

Explanation

• World Smile Day is celebrated on First Friday of October.