Juneteenth, a combination of June and nineteenth, celebrates the end of slavery in the United States. Other names are Emancipation Day, Juneteenth Independence Day, and Black Independence Day. On June 19, 1865, Major General Gordon Granger arrived in Galveston, TX, and announced the end of the Civil War and the end of slavery. Although the Emancipation Proclamation came 2½ years earlier on January 1, 1863, and many slave owners continued hold their slaves captive after the announcement, Juneteenth became a symbolic date representing African American freedom. On January 1, 1980, Juneteenth officially became a Texas state holiday; on June 17, 2021, Juneteenth became a federal holiday. Forty-nine states and the District of Columbia recognize Juneteenth as a holiday or observance.
Smith, Erin M. Juneteenth: Fact Sheet. Congressional Research Service, 21 June 2021, https://crsreports.congress.gov/product/pdf/R/R44865/23.