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Alec John Jeffreys (1950–)
By: Corey Harbison
| Published: Jun 15, 2017
Alec John Jeffreys created a process called DNA fingerprinting in the UK during the twentieth century. For DNA fingerprinting, technicians identify a…
DNA fingerprintingForensic sciencesForensic AnthropologyMicrosatellites (Genetics)Exons (Genetics)
Amphioxus, and the Mosaic Theory of Development (1893), by Edmund Beecher Wilson
By: James Lowe
| Published: Mar 31, 2015
Edmund Beecher Wilson experimented with Amphioxus (Branchiostoma) embryos in 1892 to identify what caused their cells to differentiate into new types…
Wilson, Edmund B. (Edmund Beecher), 1856-1939AmphioxusEmbryosEmbryologyDevelopmental Biology
“The Risk of Ectopic Pregnancy after Tubal Sterilization” (1997), by Herbert B. Peterson, Zhisen Xia, Joyce M. Hughes, Lynne S. Wilcox, Lisa Ratliff Tylor, and James Trussell
By: Cole Nichols
| Published: Jun 05, 2025
In 1997, Herbert B. Peterson and colleagues published “The Risk of Ectopic Pregnancy after Tubal Sterilization,” hereafter “The Risk of Ectopic…
Female SterilizationMale SterilizationTubal sterilizationEctopic PregnancyObservational Study
"The Role of Urethra in Female Orgasm" (1950), by Ernst Gräfenberg
By: Baylee A. Edwards
| Published: Sep 14, 2022
In 1950, physician and researcher Ernst Gräfenberg published “The Role of Urethra in Female Orgasm,” in the International Journal of Sexology. The…
LiteratureFemale orgasmG spotFrigidity (Psychology)Urethra
Sexology (1904) by William Henry Walling
By: Rainey Horwitz
| Published: Jul 12, 2021
In 1904, physician William Henry Walling published Sexology, a family medicine reference book. In his book, Walling proposed that his guidance would…
LiteratureMasturbationCoitus interruptusSexSexology
Planned Parenthood Committee of Phoenix (1942-1978)
By: Claudia Nunez-Eddy
| Published: Nov 08, 2016
The Planned Parenthood Committee of Phoenix was established in 1942 to expand Arizona women's access to family planning resources. The Planned…
OrganizationContraceptionDiaphragms, VaginalBirth control clinicsGynecology
Luigi Luca Cavalli-Sforza (1922–2018)
By: Tea Zawilak
| Published: Aug 10, 2025
Luigi Luca Cavalli-Sforza (1922–2018) was a researcher whose work explored the relationships between human genetic diversity and historical…
genetic variationGenetic DriftAnthropologyHuman GeneticsPopulation genetics
Understanding and Treating Gonorrhea from the Eighteenth Century to the Twenty-First Century
By: Eboni E. Andersun
| Published: Jul 08, 2024
Gonorrhea is a sexually transmitted disease, or STD, caused by the bacterium Neisseria gonorrhoeae. Common symptoms of the disease include painful…
GonorrheaNeisseria gonorrhoeaeUrinationSyphilisPelvic Inflammatory Disease
“Ethics and Policy in Embryonic Stem Cell Research” (1999), by John Ancona Robertson
By: Aida Movahed
| Published: Aug 11, 2025
In 1999, John Ancona Robertson, a researcher who studied bioethics and law, published “Ethics and Policy in Embryonic Stem Cell Research,” hereafter…
Embryo Culture TechniquesEmbryo ResearchEmbryo, MammalianEmbryonic Developmentbioethics
Doe v. Bolton (1973)
By: Carolina J. Abboud
| Published: Nov 29, 2017
In the 1973 court case Doe v. Bolton, the US Supreme Court in Washington, D.C., ruled that a Georgia law regulating abortion was unconstitutional.…
LawBirth control clinicsAbortionFamily planning servicesAbortion--Law and legislation--United States