

This French scientist's work on a tuberculosis vaccine and snake antivenom has saved countless millions of lives across the globe.
Albert Calmette was a cornerstone of the Pasteur Institute's global mission, a physician whose practical brilliance in the lab had profound real-world consequences. Stationed in Saigon and later Lille, he tackled local health crises, which led to his landmark innovations. His most enduring legacy began with a frustrating problem: how to protect children from tuberculosis. Working with veterinarian Camille Guérin, he patiently cultivated a weakened strain of bovine TB bacteria over thirteen years, resulting in the BCG vaccine, first used on a human in 1921. Parallel to this, after witnessing the toll of snakebites in French Indochina, he developed the first effective antivenom serum, using horses to produce antibodies. Calmette was a builder of institutes and a disciple of Pasteur's method, applying rigorous science to the most urgent public health threats of his time. His vaccines and serums became staples in clinics worldwide.
1860–1882
Born during or after the Civil War, they built industrial America — the railroads, the steel mills, the first skyscrapers. An era of massive wealth, massive inequality, and the belief that the future belonged to whoever could build it fastest.
Albert was born in 1863, placing them squarely in The Gilded Age. 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 1863
The world at every milestone
World's Columbian Exposition dazzles Chicago
Wright brothers achieve first powered flight
The Federal Reserve is established
The Great Kanto earthquake devastates Tokyo
FDR's New Deal launches; Prohibition ends
The BCG vaccine is named after him (Bacille Calmette-Guérin).
He was a naval doctor early in his career, which sparked his interest in tropical medicine.
He successfully lobbied for the first French law mandating the pasteurization of milk in 1920.
During World War I, he used his fermentation expertise to help produce acetone for explosives.
“The microbe is nothing, the terrain is everything.”