Throwback Thursday: Beware October 24

Today, October 24, is the anniversary of not just one but two of the biggest U.S. stock-market crashes in history: Black Thursday in 1929, which heralded the Great Depression, and Bloody Friday in 2008, which hastened in the worst recession since then.

What is it about the 24th? Or maybe a bigger question: What is it about October? On Oct. 27, 1997, there was the “mini-crash” of the Asian markets, and on Oct. 19, 1987—“Black Monday”—the U.S. market saw its biggest one-day drop in history, 508 points.