In 1999, preoccupied with questions about the fundamental nature of humanity and the most pressing issues of our time, filmmaker Jeremy Gilley launched Peace One Day and set out to find a starting point for peace. He had a mission: to document his efforts to establish the first ever annual day of global ceasefire and non-violence with a fixed calendar date.

That date is 21st September and incredibly the 192 member states of the United Nations have unanimously signed up to mark this as the UN International Day of Peace.

To learn more, and learn how you can take part, click here.