The document discusses International Day of Peace, which is an annual United Nations observance held on September 21st. It was established in 1981 to commemorate and strengthen ideals of peace, with the goal of achieving a 24-hour global ceasefire and non-violence. The document also describes various campaigns and initiatives by the organization Peace One Day, such as concerts, films, sports events, and educational resources, to raise awareness about peacebuilding and the millions of people displaced annually by conflict around the world.