Frederick Douglass once said during a speech in 1852, “This Fourth of July is yours, not mine. You may rejoice, I must mourn.”

Thirteen years later, the last enslaved people in America received news of the Emancipation Proclamation on June 19, 1865, two years after the proclamation was first issued. The formerly enslaved people rejoiced — marking Juneteenth, which has many names including Emancipation Day, Freedom Day, Jubilee Day and Black Independence Day.