October Observances

• October 1 — International Day of Older Persons

A day designated by the United Nations to honor older persons, highlight their contributions, and advocate for stronger care and support systems

• October 5 — World Teachers’ Day

A day to celebrate and appreciate teachers worldwide, recognizing their vital role in education and society. (Often observed by UNESCO and education systems globally)

• October 10 — World Mental Health Day

A global observance to raise awareness about mental health issues, reduce stigma, and advocate for mental health care access.

• October 12 — Indigenous Peoples’ Day / Columbus Day (in U.S. contexts)

Indigenous Peoples’ Day honors the histories and contributions of Indigenous communities, often offering an alternative observance to Columbus Day, which historically celebrates Columbus’s arrival in the Americas.

• October 13 — Breast Health Day (Europe / Breast Cancer Awareness Europe)

A day in Europe dedicated to raising awareness about breast health, early detection, and support for those affected by breast cancer.

• October 16 — World Food Day

Organized by the Food and Agriculture Organization (FAO), it highlights issues of hunger, food security, and sustainable agriculture.

• October 31 — Halloween / All Hallows’ Eve / Samhain

A popular cultural and secular celebration involving costumes, trick‑or‑treating, and reflecting on the boundary between the living and the dead.