Subcategories - Scientists

  1. 117,000-Year-Old Human Footprints Are Found Near South African Lagoon
  2. Abel Develops the First Artificial Kidney
  3. Abul Wefa
  4. Abuū Mūsā Jābir ibn Hayyān
  5. AIDS Scientists and Activists Meet in Amsterdam
  6. Al-Bīrūnī
  7. Albert A. Michelson
  8. Albert Calmette
  9. Alcmaeon
  10. Aleksandr Ivanovich Oparin
  11. Alessandro Volta
  12. Alexander Graham Bell
  13. Alexander Neckam
  14. Alexander von Humboldt
  15. Alfred Wegener
  16. Alhazen
  17. Amedeo Avogadro
  18. American Scientists Campaign Against Nuclear Testing
  19. Anaxagoras
  20. Anaximander
  21. Anaximenes of Miletus
  22. An Ancient Sanctuary Is Discovered in El Juyo Cave, Spain
  23. André-Louis Danjon
  24. Andrei Sakharov
  25. Andrews Discovers the First Fossilized Dinosaur Eggs
  26. Anschütz-Kaempfe Installs a Gyrocompass onto a German Battleship
  27. Anthropologists Claim That Ecuadorian Pottery Shows Transpacific Contact in 3000 b.c.e.
  28. Anthropologists Discover “Lucy,” an Early Hominid Skeleton
  29. Antoine-Laurent Lavoisier
  30. Antoni van Leeuwenhoek
  31. Apple II Becomes the First Successful Preassembled Personal Computer
  32. Archaeologists Unearth Ancient Scrolls
  33. Archimedes
  34. Ardrey’s The Territorial Imperative Argues That Humans Are Naturally Territorial
  35. Aretaeus of Cappadocia
  36. Aristotle Isolates Science as a Discipline
  37. Armstrong Perfects FM Radio
  38. Arnold of Villanova
  39. Arthur Holly Compton
  40. Artificial Fluoridation of Municipal Water Supplies to Prevent Dental Decay Is Introduced
  41. The Artificial Sweetener Cyclamate Is Introduced
  42. Asa Gray
  43. Asclepiades of Bithynia
  44. Aserinsky Discovers Rapid Eye Movement (REM) in Sleep and Dreams
  45. Aston Builds the First Mass Spectrograph and Discovers Isotopes
  46. Astronomers Discover an Unusual Ring System of Planet Neptune
  47. Astronomers Discover the Rings of the Planet Uranus
  48. August Krogh
  49. August Weismann
  50. Aulus Cornelius Celsus