Juneteenth is the oldest nationally celebrated commemoration of the ending of slavery in the United States. Though the Emancipation Proclamation had been issued on September 22, 1862, with an effective date of January 1, 1863, it had little immediate effect on most slaves’ day-to-day lives, particularly in Texas, which was almost entirely under Confederate control. Juneteenth commemorates June 19, 1865, the day Union General Gordon Granger and 2,000 federal troops arrived in Galveston, Texas, to take possession of the state and enforce the emancipation of its slaves. Legend has it while standing on the balcony of Galveston’s Ashton Villa, Granger read the contents of “General Order No. 3”:

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.

That day has since become known as Juneteenth, a name derived from a portmanteau of the words June and nineteenth.

Former slaves in Galveston rejoiced in the streets with jubilant celebrations. Juneteenth celebrations began in Texas the following year. From its Galveston, Texas origin, the observance of June 19th as the African American Emancipation Day has spread across the United States and beyond.

Today Juneteenth commemorates African American freedom and emphasizes education and achievement. It is a day, a week, and in some areas a month marked with celebrations, guest speakers, picnics and family gatherings. It is a time for reflection and rejoicing. It is a time for assessment, self-improvement and for planning the future. Its growing popularity signifies a level of maturity and dignity in America long over due. In cities across the country, people of all races, nationalities and religions are joining hands to truthfully acknowledge a period in our history that shaped and continues to influence our society today. Sensitized to the conditions and experiences of others, only then can we make significant and lasting improvements in our society.

Wikipedia and Juneteenth.com