juneteenth 2024 is the commemoration of the end of slavery in the United States, specifically marking the date of June 19, when in 1865, Union Army general Gordon Granger proclaimed freedom for slaves in Texas, the last state of the Confederacy with institutional slavery. Juneteenth 2024 will be observed on Wednesday, June 19, 2024, and will be celebrated as a federal holiday, as it was officially recognized in 2021 when President Joe Biden signed the Juneteenth National Independence Day Act into law.