November 28, 1939: The Day Smog Darkened the Sky Above St. LouisNovember 28, 1939: The Day Smog Darkened the Sky Above St. LouisThe sky in St. Louis wasn't always as clear as the picture. It wasn't on Tuesday, November 28, 1939, you couldn't see five feet in front of your face.Rob CreightonRob Creighton