Juneteenth is a federal holiday in the United States commemorating the emancipation of African-American slaves. It is also often observed to celebrate African-American culture. Originating in Galveston, Texas, it has been celebrated annually on June 19 in various parts of the United States since 1865. The day was recognized as a federal holiday on June 17, 2021, when President Joe Biden signed the Juneteenth National Independence Day Act into law. Juneteenth’s commemoration is on the anniversary date of the June 19, 1865, announcement of General Order No. 3 by Union Army General Gordon Granger, proclaiming freedom for slaves in Texas, which was the last state of the Confederacy with institutional slavery.
Additional information
https://en.wikipedia.org/wiki/Juneteenth