The story
Lincoln's Emancipation Proclamation took effect on 1 January 1863, but it could only be enforced where the Union army was. Texas, the farthest state of the Confederacy, was reached last: on 19 June 1865 General Gordon Granger read General Order No. 3 at Galveston, that all slaves are free, to a state where a quarter of a million people were still enslaved. The freed people of Texas kept the anniversary from the next year, and carried it across the country in the migrations of the twentieth century.
The name is the month and the day run together. It was made a federal holiday in June 2021, the first new one since Martin Luther King Jr. Day in 1983.
