In late 19th-Century, millions of American children learned in school that just one taste of alcohol could lead to blindness, madness or even spontaneous combustion.

Robert De Niro was so dedicated to prepare for his roles, he actually gained 60 lbs for Raging Bull, lived in Sicily, Italy for The Godfather Part II, ground his teeth for Cape Fear, became a cab driver for Taxi Driver, and learned to play the saxophone for New York, New York.

Learned helplessness is a condition in which a person suffers from a sense of powerlessness, arising from a traumatic event or persistent failure to succeed. It is thought to be one of the underlying causes of depression.

n 1942, the Canadians and the British Navy launched a practice invasion of France, the “Dieppe Raid.” 20% were killed, 10% wounded, 30% captured. The lessons learned in that disaster lead to D-Day’s success.