"Across America, on both sides of the Mason-Dixon Line, the races were kept separate at the theater. Black people sat apart in the upper galleries or were excluded entirely, by custom and, in some southern cities, by law. As hybrid places—private associations open to the public—theaters were subject to municipal authority, but property owners possessed the liberty to exclude or restrict at will. The common law recognized no right of amusement seeking. After emancipation, statehouses controlled by Radical Republicans banned distinctions of race and color in public conveyances and resorts. But the legislation was evaded simply by tickets stating that proprietors had discretion to exclude anyone. Nor did it carry a positive grant of rights; it regulated places rather than entitling persons."
Article source here:The Arts Journal