Tomorrow is the first Friday the 13th of 2012. To celebrate, LIFE.com posted a terrific gallery of photos from a "Friday the 13th Party" that took place December 13, 1940, in Room 13 at the Merchants & Manufacturers Club of Chicago.
"Chicago's Anti-Superstition Society, 1940"
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.