Juneteenth (almost 150 years ago) still marks Emancipation

from American Public Media (Garrison Keillor, Writer's Almanac):

This date (June 19) marks Juneteenth, also known as "Freedom Day" or "Emancipation Day." It's a holiday commemorating the end of slavery in the United States. It was on this date in 1865 that Union soldiers arrived in Galveston, Texas, to spread the word that slavery had been abolished. Of course, the Emancipation Proclamation had gone into effect some two and a half years earlier, in January 1863; most Confederate states ignored it until they were forced to free their slaves by advancing Union troops.
From the balcony of Galveston's Ashton Villa, General Gordon read the contents of General Order Number Three: "The people of Texas are informed that, in accordance with a proclamation from the Executive of the United States, all slaves are free. This involves an absolute equality of personal rights and rights of property between former masters and slaves, and the connection heretofore existing between them becomes that between employer and hired labor. The freedmen are advised to remain quietly at their present homes and work for wages. They are informed that they will not be allowed to collect at military posts and that they will not be supported in idleness either there or elsewhere."
Galveston's former slaves celebrated that day, and formal Juneteenth festivities were held in other parts of Texas on the first anniversary. Celebrations of the holiday have waxed and waned over the years; today, Juneteenth is celebrated in communities all over the country, and as of earlier this year 2012, it's officially recognized as a holiday by the governments of 42 of the United States. Observances often include a reading of the Emancipation Proclamation and performances of traditional African-American music, dancing, and literature.