Juneteenth (federal holiday in the US today!)

Although this event commemorates the end of slavery, emancipation for the remaining enslaved population in two Union border states, Delaware and Kentucky, would not come until December 6, 1865, when the Thirteenth Amendment was ratified. The federal amendment also put a definitive end to chattel slavery and indentured servitude in New Jersey, freeing approximately 16 elderly individuals. Furthermore, thousands of black slaves were not freed until after the Reconstruction Treaties of late 1866, when the Cherokee, Creek, Chickasaw, Choctaw, and Seminole tribes were forced to sign new treaties that required them to free their slaves.

america was built on the back of slaves.