International Human Solidarity Day observed on 20 December 2025 with theme 'Solidarity for Sustainable Development: Uniting Communities for a Shared Future'

Exam-focused facts from the 21 December 2025 current affairs briefing.

Key facts

International Human Solidarity Day is celebrated annually on 20 December to mark the core value of solidarity in international relations and a driving force to achieve sustainable development and social justice.
The theme for 2025 is 'Solidarity for Sustainable Development: Uniting Communities for a Shared Future.'
On 22 December 2005, the United Nations General Assembly (UNGA) proclaimed 20 December as International Human Solidarity Day, recognizing solidarity as a universal value for the 21st century.