Subcategories - Biology, Biologists
- Abel and Takamine Independently Isolate Adrenaline
- Abel Develops the First Artificial Kidney
- AIDS Scientists and Activists Meet in Amsterdam
- Albert Calmette
- Aleksandr Ivanovich Oparin
- Alexander von Humboldt
- Alfred Kinsey
- Andreas Vesalius
- Antoni van Leeuwenhoek
- António Egas Moniz
- Artificial Fluoridation of Municipal Water Supplies to Prevent Dental Decay Is Introduced
- Asa Gray
- August Krogh
- August Weismann
- Avery, Macleod, and McCarty Determine That DNA Carries Hereditary Information
- Barghoorn and Coworkers Find Amino Acids in 3-Billion-Year-Old Rocks
- Barghoorn and Tyler Discover 2-Billion-Year-Old Microfossils
- Barnard Performs the First Human Heart Transplant
- Baron Florey
- Bateson and Punnett Observe Gene Linkage
- Baulieu Develops RU-486, a Pill That Induces Abortion
- Bayliss and Starling Discover Secretin and Establish the Role of Hormones
- Beatrix Jones Farrand
- Behring Discovers the Diphtheria Antitoxin
- Bell Labs Introduces Electronically Amplified Hearing Aids
- Berg, Gilbert, and Sanger Develop Techniques for Genetic Engineering
- Bernardo Alberto Houssay
- Bevis Describes Amniocentesis as a Method for Disclosing Fetal Genetic Traits
- Birth Control Pills Are Tested in Puerto Rico
- Blalock Performs the First “Blue Baby” Operation
- Borlaug Begins Work on High-Yield Wheat
- Boyd Defines Human Races by Blood Groups
- Brown Gives Birth to the First “Test-Tube” Baby
- Calmette and Guérin Develop the Tuberculosis Vaccine BCG
- Calvin Wins the Nobel Prize for His Work on Photosynthesis
- Carrel Develops a Technique for Rejoining Severed Blood Vessels
- Carson Publishes Silent Spring
- Cech Demonstrates That RNA Can Act as an Enzyme
- Cerletti and Bini Develop Electroconvulsive Therapy for Treating Schizophrenia
- Charles Darwin
- Chemical and Biological Warfare
- Chloramphenicol Is Discovered
- Chlorination of the U.S. Water Supply Begins
- Claude Bernard
- Clewell Corrects Hydrocephalus by Surgery on a Fetus
- Cohen and Boyer Develop Recombinant DNA Technology
- Comte de Buffon
- Controversy Arises over Estrogen and Heart Attacks
- The Crew of Biosphere 2 Exits After Two Years
- Daffos Uses Blood Taken Through the Umbilical Cord to Diagnose Fetal Disease
