cotton curtain
n.— «When the cotton curtain stood between us, and people were hateful and mean, I was here. When we didn’t have public accommodations, I was here. When the doors of opportunity had never been opened, I was here. When it was time to get the right to vote, I was here.» —“Reporter’s Notebook: Jackson In South” by Fay S. Joyce in Atlanta, Georgia New York Times Mar. 12, 1984. (source: Double-Tongued Dictionary)