From the Introduction: "Juneteenth celebrates the end of slavery in the United States. It is also known as Emancipation Day, Freedom Day, Jubilee Day, Juneteenth Independence Day, and Black Independence Day. On June 19, 1865, Major General Gordon Granger arrived in Galveston, TX, and announced the end of the Civil War and the end of slavery. Although the Emancipation Proclamation came 2½ years earlier on January 1, 1863, many slave owners continued to hold their enslaved people captive after the announcement, so Juneteenth became a symbolic date representing African-American freedom. This fact sheet assists congressional offices with work related to Juneteenth. It contains sample speeches and remarks from the 'Congressional Record,' presidential proclamations and remarks, and selected historical and cultural resources"
CRS Report for Congress, R44865
Congressional Research Service: https://crsreports.congress.gov/