International Day of Peace is on September 21. The 2017 theme is Together for Peace, Safety, Respect & Dignity For All.  For information about 2017 events, check here and the UN Peace Day Facebook page.  For more information check the Facebook page for Peace One Day as well as their websites and the other links below. History On September 7, 2001, the United Nations unanimously adopted a fixed date, September 21, for International Day of Peace (originally sponsored by the United Kingdom and Costa Rica for the third Tuesday of the month of September.) The U.N. also defined International Day of Peace as a day of ceasefire and non-violence. These proposals were introduced by U.N. members from Costa Rica and the United Kingdom after two years of international lobbying by Jeremy Gilley, the founder of Peace One Day, and his team. Four days later, on September 11 International Day of  Peace for 2001, Kofi Annan, the then Secretary-General of the U.N., was scheduled to make the announcement at a press conference at the Peace Bell outside …