The United Nations (UN) has played a significant role in Black history by addressing issues of racial discrimination, promoting equality, and advocating for the rights of Black people around the world. The UN was established in 1945 in the aftermath of World War II with the goal of promoting peace, security, and cooperation among nations.

One of the earliest actions taken by the UN in relation to Black history was the adoption of the Universal Declaration of Human Rights in 1948, which affirmed the principle that all human beings are born free and equal in dignity and rights. This declaration laid the foundation for the UN's work in combating racism and discrimination, including the specific focus on the rights of Black individuals and communities.

Over the years, the UN has established various bodies and mechanisms to address issues of racial discrimination and promote the rights of Black people, including the Committee on the Elimination of Racial Discrimination and the Working Group of Experts on People of African Descent. These bodies monitor and report on the status of racial discrimination and inequality around the world, including within Black communities.

Additionally, the UN has declared several international observances related to Black history, such as the International Day for the Elimination of Racial Discrimination on March 21st and the International Decade for People of African Descent (2015-2024), which aims to promote the contributions of people of African descent to all aspects of society.

Overall, the United Nations has been instrumental in raising awareness about issues of racism and discrimination faced by Black people and advocating for their rights and equality on a global scale.