June 19th marks a historical day of remembrance that has often been overlooked of the decades. The following article from the Smithsonian provides great historical context.
Chief Bob Spinks
On "Freedom's Eve," or the eve of January 1, 1863, the first Watch Night services took place. On that night, enslaved and free African Americans gathered in churches and private homes all across the country awaiting news that the Emancipation Proclamation had taken effect. At the stroke of midnight, prayers were answered as all enslaved people in Confederate States were declared legally free. Union soldiers, many of whom were black, marched onto plantations and across cities in the south reading small copies of the Emancipation Proclamation spreading the news of freedom in Confederate States. Only through the Thirteenth Amendment did emancipation end slavery throughout the United States.
The post-emancipation period known as Reconstruction (1865-1877) marked an era of great hope, uncertainty, and struggle for the nation as a whole. Formerly enslaved people immediately sought to reunify families, establish schools, run for political office, push radical legislation, and even sue slaveholders for compensation. Given the 200+ years of enslavement, such changes were nothing short of amazing. Not even a generation out of slavery, African Americans were inspired and empowered to transform their lives and their country.
Source: Smithsonian - National Museum of African American of History and Culture