On October 29, 1929, the bottom fell out of the stock market. There’d been signs – the previous Thursday had almost been the day, but a handful of big money types shored up confidence by buying shares in major industries at well-above market value. It didn’t hold. “Black Tuesday” set off a domino effect of selling, panic, business failures, bank runs, and even a few suicides. It wasn't what you'd call a "good day" for America.