Juneteenth, also known as Freedom Day or Emancipation Day, is a holiday in the United States honoring African American heritage by commemorating the announcement of the abolition of slavery in the U.S. State of Texas in 1865. Celebrated on June 19, the term is a portmanteau of June and nineteenth, and is recognized as a state holiday or state holiday observance in 41 states of the United States.

The state of Texas is widely considered the first U.S. state to begin Juneteenth celebrations with informal observances taking place for over a century; it has been an official state holiday since 1890. It is considered a "partial staffing holiday", meaning that state offices do not close, but some employees will be using a floating holiday to take the day off. Schools are not closed, but most public schools in Texas are already into summer vacation by June 19th. Its observance has spread to many other states, with a few celebrations even taking place in other countries.

As of June 2011, 41 states and the District of Columbia have recognized Juneteenth as either a state holiday or state holiday observance; these are Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Vermont, Virginia, Washington, West Virginia, Wisconsin and Wyoming.

The term black people is used in some socially-based systems of racial classification for humans of a dark-skinned phenotype, relative to other racial groups represented in a particular social context. Different societies apply different criteria regarding who is classified as "black", and often social variables such as class and socio-economic status also play a role, so that relatively dark-skinned people can be classified as white if they fulfill other social criteria of "whiteness" and relatively light-skinned people can be classified as black if they fulfill the social criteria for "blackness" in a particular setting.

As a biological phenotype being "black" is often associated with the very dark skin colors of some people who are classified as "black". But, particularly in the United States, the racial or ethnic classification also refers to people with all possible kinds of skin pigmentation from the darkest through to the very lightest skin colors, including albinos, if they are believed by others to have African ancestry, or to exhibit cultural traits associated with being "African-American". As a result, in the United States the term "black people" is not an indicator of skin color but of socially based racial classification.