1893: Florence Bascom became the second woman to earn her Ph.D. in geology in the United States, and the first woman to receive a Ph.D. from Johns Hopkins University.[6][7] Geologists consider her to be the "first woman geologist in this country [America]."[8]
1901: Florence Bascom became the first female geologist to present a paper before the Geological Survey of Washington.[11]
1903: Marie Curie became the first woman to win the Nobel Prize, awarded in Physics, and went on to also win the Nobel Prize in Chemistry. She performed pioneering research in radioactivity, and discovered two elements (polonium and radium).[12]
1912: Henrietta Swan Leavitt studied the bright-dim cycle periods of Cepheid stars, then found a way to calculate the distance from such stars to Earth.[13]
1947: Marie Maynard Daly became the first Black woman in the United States to earn a Ph.D. in chemistry, and went on to perform research that would define how cholesterol clogged arteries, paving the way for a broad understanding that diet affects heart health.[22]
1950: Isabella Abbott became the first Native Hawaiian woman to receive a PhD in any science; hers was in botany.[24][25]
1950: Esther Lederberg was the first to isolate lambda bacteriophage, a DNA virus, from Escherichia coli K-12.[26]
1952: Grace Hopper completed what is considered to be the first compiler, a program that allows a computer user to use English-like words instead of numbers. It was known as the A-0 compiler.[27]
1962: Katherine Johnson performed the calculations for the NASA orbital mission, launching John Glenn as the first person into orbit and returning them safely.[34][35]
1965: Sister Mary Kenneth Keller became the first American woman to earn a Ph.D. in Computer Science.[40] Her thesis was titled "Inductive Inference on Computer Generated Patterns."[41]
1992: Edith M. Flanigen became the first woman awarded the Perkin Medal (widely considered the highest honor in American industrial chemistry) for her outstanding achievements in applied chemistry.[60][61] The medal especially recognized her syntheses of aluminophosphate and silicoaluminophosphate molecular sieves as new classes of materials.[61]
2020: Kathryn D. Sullivan, the first American woman to walk in space, descended 35,810 feet to the Challenger Deep, making her the first person to both walk in space and to reach the deepest known point in the ocean.[75]
^Biography.com Editors. "Marie M. Daly Biography". The Biography.com website. A&E Television Networks. Retrieved 13 June 2020. {{cite web}}: |last1= has generic name (help)
^ abChiang, Tsai-Chien (2014). Madame Chien-Shiung Wu: The First Lady of Physics Research. pg. 80-81. World Scientific. ISBN978-981-4374-84-2.
^ abWang, Zuoyue (1970–80). "Wu Chien-Shiung". Dictionary of Scientific Biography. 25. New York: Charles Scribner's Sons. pp. 363–368. ISBN978-0-684-10114-9.
^Patricia E. Bath, US Patent 4,744,360, Apparatus for ablating and removing cataract lenses, issued May 17, 1988 (filed Dec. 18, 1986). Retrieved February 24, 2019
^U.S. National Library of Medicine. "Dr. Antonia Novello". Changing the Face of Medicine website. National Institutes of Health, Health & Human Services. Retrieved 14 June 2020.