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.

The theme for the International Day of Peace in 2018 is “The Right to Peace – The Universal Declaration of Human Rights at 70”

 
The theme celebrates the 70th anniversary of the Universal Declaration of Human Rights.
The Universal Declaration of Human Rights is a milestone document in the history of human rights. Drafted by representatives with different legal and cultural backgrounds from all regions of the world, the Declaration was adopted by the United Nations General Assembly in Paris on 10 December 1948 as a common standard of achievement for all peoples and all nations.
The Universal Declaration – the most translated document in the world, available in more than 500 languages – is as relevant today as it was on the day that it was adopted.
See more at:
http://www.un.org/en/events/peaceday/?platform=hootsuite