International Day for the Remembrance of the Slave Trade and its Abolition, August 23 of each year, the day designated by UNESCO to memorialize the transatlantic slave trade.  

The human and environmental tragedies that are the result of nuclear testing are compelling reasons for the need to observe the International Day against Nuclear Tests – a day in which educational events, activities and messages aim to capture the world’s attention and underscore the need for unified efforts to prevent further nuclear weapons testing […]

The International Day of the Victims of Enforced Disappearances, on August 30 of each year, is a day created to draw attention to the fate of individuals imprisoned at places and under poor conditions unknown to their relatives and/or legal representatives.

In recognition of the role of charity in alleviating humanitarian crises and human ‎suffering within and among nations, as well as of the efforts of charitable organizations ‎and individuals, including the work of Mother Teresa, the General Assembly of the ‎United Nations designated the 5th of September, the ‎anniversary of the death of Mother Teresa, […]

September 8 was declared International Literacy Day by UNESCO on November 17, 1965. Its aim is to highlight the importance of literacy to individuals, communities and societies. Celebrations take place in several countries.

World Suicide Prevention Day is an awareness day observed on 10 September every year, in order to provide worldwide commitment and action to prevent suicides, with various activities around the world.

In 2007 the United Nations General Assembly resolved to observe 15 September as the International Day of Democracy—with the purpose of promoting and upholding the principles of democracy—and invited all member states and organizations to commemorate the day in an appropriate manner that contributes to raising public awareness.

September 16 was designated by the United Nations General Assembly as the International Day for the Preservation of the Ozone Layer. This designation had been made on December 19, 1994, in commemoration of the date, in 1987, on which nations signed the Montreal Protocol on Substances that Deplete the Ozone Layer......