

The American biochemist who cracked the code of hormone action, discovering the 'second messenger' system that revolutionized cellular communication.
Earl Sutherland was a Midwesterner whose relentless curiosity in the lab unraveled one of physiology's great mysteries: how hormones, those chemical messengers coursing through our blood, actually instruct a cell. Working at Case Western Reserve University, he focused on the hormone epinephrine (adrenaline) and its effect on breaking down glycogen in the liver. Through a series of elegant and painstaking experiments, he and his team isolated a novel molecule, cyclic adenosine monophosphate (cyclic AMP), proving it was the crucial intermediary—the 'second messenger'—that relayed the hormone's signal from the cell's surface to its internal machinery. This discovery was a seismic shift, providing a universal model for understanding not just hormones, but neurotransmitters, drugs, and sensory processes. A modest man who preferred the bench to the podium, Sutherland’s insight laid the entire foundation for the modern field of signal transduction, turning a black box into a map of intricate pathways.
1901–1927
Grew up during the Depression, fought World War II, and built the postwar economic boom. Defined by shared sacrifice, institutional trust, and a belief that hard work and loyalty would be rewarded.
Earl was born in 1915, placing them squarely in The Greatest Generation. The events that shaped this generation — world wars, depression, and rapid industrialization — shaped the world they entered and the choices available to them.
The biggest hits of 1915
#1 Movie
The Birth of a Nation
The world at every milestone
The Lusitania is sunk by a German U-boat
Women gain the right to vote in the US
Alexander Fleming discovers penicillin; Mickey Mouse debuts
The Empire State Building opens as the world's tallest
FDR's New Deal launches; Prohibition ends
Jesse Owens wins four golds at the Berlin Olympics
WWII ends; atomic bombs dropped on Hiroshima and Nagasaki
Rosa Parks refuses to give up her bus seat
US sends combat troops to Vietnam
Nixon resigns the presidency
He served as a battalion surgeon in the U.S. Army during World War II before returning to research.
Sutherland was an avid fisherman and often said the patience required for the sport helped him in the laboratory.
His Nobel Prize medal was stolen in a 1992 burglary but was later recovered and donated to Vanderbilt University.
He initially pursued a medical degree but found his true calling in basic pharmacological research.
“I have always been more interested in the mechanism of things than in the cure of things.”