Today is Juneteenth (“June” plus “nineteenth”). The less you know about this holiday, the more you need to know. On June 19, 1865, two months after the Confederacy surrendered, Union General Gordon Granger led a group of federal troops into Galveston, Texas. Maj. Gen. Granger issued this declaration: “The people of Texas are informed that, in accordance with a proclamation from the Executive of the United States, ‘all slaves are free.’