September 21st is International Day of Peace (Peace Day)
“Over the next 100 days, let us stand with the millions of people across the world who are suffering the devastating impact of violence and conflict. Let us share ideas and plans for helping and supporting them in their time of dire need.”
UN Secretary-General Ban Ki-moon
Each year the International Day of Peace is observed around the world on 21 September. The [UN] General Assembly has declared this as a day devoted to strengthening the ideals of peace, both within and among all nations and peoples.