This 2012 episode from prior hosts Sarah and Deblina covers dentist Horace Wells. At an exhibition in 1844 he became certain that nitrous oxide could revolutionize medicine. He tried to demonstrate his findings, but things didn't go as planned.

Gustave Flaubert and the ‘Madame Bovary’ Trial
45:15

Elizabeth Bisland, Beyond the Trip Around the World
42:54

SYMHC Classics: Marie Laurencin
32:46