

She shattered Berkeley's mathematics glass ceiling, solving a century-old problem in number theory for her groundbreaking doctorate.
Annie Dale Biddle Andrews navigated a world where advanced mathematics was considered an unsuitable pursuit for women. After earning bachelor's and master's degrees from the University of California, Berkeley, she set her sights on a Ph.D., a path no woman had completed there. Under the guidance of mathematician Derrick Norman Lehmer, she tackled a problem in the theory of congruences that had lingered since the 18th century. In 1911, her dissertation, 'Constructive Theory of the Unicursal Plane Quartic by Means of its Tangents,' successfully cracked it, earning her the historic doctorate. She continued researching and teaching, though opportunities in academia were limited. Her quiet, determined breakthrough paved the way for the generations of women mathematicians who followed at Berkeley and beyond, proving the rigor of their intellect in the most concrete terms possible: a solved problem.
1883–1900
Came of age during World War I. Disillusioned by the carnage, they rejected the certainties of the Victorian era and built modernism from the wreckage — in art, literature, and politics.
Annie was born in 1885, placing them squarely in The Lost 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 1885
The world at every milestone
Karl Benz builds the first gasoline-powered automobile
Wounded Knee massacre marks the end of the Indian Wars
Spanish-American War; US emerges as a world power
Queen Victoria dies, ending the Victorian era
Wright brothers achieve first powered flight
San Francisco earthquake devastates the city
The Lusitania is sunk by a German U-boat
The Scopes Trial debates evolution in schools
Social Security Act signed into law
The Blitz: Germany bombs London
Her Ph.D. was only the second in mathematics awarded to a woman in the entire United States.
She was a member of the honor society Pi Mu Epsilon.
After her Ph.D., she taught mathematics at a high school in San Francisco.
“My thesis proves the reducibility of the seventh type of collineations in a plane of order 2^n.”