Juneteenth commemorates the U.S. abolition of slavery under President Abraham Lincoln's 1863 Emancipation Proclamation, belatedly announced by a Union army in Galveston, Texas, on June 19, 1865, after the Civil War ended. Thousands marched through U.S. cities on Friday, capping nearly four weeks of protests and national soul-searching sparked by the death of a Black man, George Floyd, under the knee of a white police officer in Minneapolis. In a post on Instagram, Buss shared a picture of a note containing offensive language from a person named Joe, who described himself as a "huge Lakers fan", that she said she received on Monday.