It’s a busy day in history, Chicago. Yes, today marks 37 years since the Chicago Bears won Super Bowl XX. It’s also the 56th anniversary of the “Blizzard of 1967,” which dropped 23 inches of snow on Chicago and stands as the largest snowfall on record here. But we’ve already covered those monumental events in previous editions of the Vintage Chicago Tribune newsletter. My co-curator Marianne Mather had a fantastic idea when she suggested we revisit wintry outdoor activities that Chicagoans have loved for generations.