"The Extraordinary Popular Delusion and Madness" of Charles Mackay

"Men, it has been well said, think in herds; it will be seen that they go mad in herds, while they only recover their senses slowly, and one by one."

-Charles Mackay

When Charles Mackay penned "Extraordinary Popular Delusions and the Madness of Crowds" in 1841, he immortalized the astonishing human capacity for mass irrationality.

This masterwork chronicle…