Categories - Technology, Inventions

  1. Abel Develops the First Artificial Kidney
  2. Abraham Darby
  3. Acquisition of the Panama Canal Zone
  4. Activists Oppose Deployment of the MX Missile
  5. Aircraft Carriers
  6. Alan Mathison Turing
  7. The Alaska Highway Is Completed
  8. Alberto Santos-Dumont
  9. Aleksandr Stepanovich Popov
  10. Alexander Graham Bell
  11. Alfred Krupp
  12. Alfred Nobel
  13. The Alternative Motor Fuels Act Is Passed
  14. Anaximander
  15. André-Gustave Citroën
  16. André-Louis Danjon
  17. Andrei Nikolayevich Tupolev
  18. Anschütz-Kaempfe Installs a Gyrocompass onto a German Battleship
  19. Antoni van Leeuwenhoek
  20. Apollo 11 Lands on the Moon
  21. Apollo-Soyuz Rendezvous Inaugurates International Cooperation in Space
  22. Apple II Becomes the First Successful Preassembled Personal Computer
  23. Archimedes
  24. Armenian Earthquake Leads to Calls for Building Reform
  25. Armor
  26. Armstrong Perfects FM Radio
  27. The Arroyo Seco Freeway Opens in Los Angeles
  28. Arsenal
  29. The Art of Radio Develops from Early Broadcast Experience
  30. Artillery
  31. Arts and Architecture Magazine Initiates the Case Study Program
  32. Aston Builds the First Mass Spectrograph and Discovers Isotopes
  33. Astronauts Renovate Hubble Telescope
  34. Astronauts Repair the Hubble Space Telescope
  35. Astronomers Detect Black Hole
  36. Astronomers See Light from Object 12.2 Billion Light-Years Away
  37. AT&T and GTE Install Fiber-Optic Telephone Systems
  38. Atlas-Centaur Rocket Is Developed
  39. Atlatl
  40. Atomic Bombing of Japan
  41. Atomic-Powered Submarine Nautilus Is Launched
  42. The Audubon Society Opens Its New Headquarters Building
  43. Automakers Introduce the Catalytic Converter
  44. Bacon Designs First Fuel Cell
  45. Baekeland Invents Bakelite
  46. Balkan Wars
  47. Ballistic Weapons
  48. Baltimore and Ohio Railroad Begins Operation
  49. Banner Stones
  50. Bantu People Invent Copper Metallurgy

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