The International Day of Non-Violence is observed on 2 October, the birthday of Mahatma Gandhi. The day is referred to in India as Gandhi Jayanti.
In January 2004, Iranian Nobel laureate Shirin Ebadi had taken a proposal for an International Day of non-violence from a Hindi teacher in Paris teaching international students to the World Social Forum in Bombay. The idea gradually attracted the interest of some leaders of India's Congress Party until a Satyagraha Conference resolution in New Delhi in January 2007 initiated by Sonia Gandhi and Archbishop Desmond Tutu called upon the United Nations to adopt the idea.
On 15 June 2007, the United Nations General Assembly voted to establish October 2nd as the International Day of Non-Violence. The resolution by the General Assembly asks all members of the UN system to commemorate October 2nd in "an appropriate manner and disseminate the message of non violence, including through education and public awareness."
Let's just give peace a chance!