Geographical Location - Ohio

  1. Adena
  2. Adena Mound Builders Live in North America
  3. Akron Woman’s Rights Convention
  4. American Federation of Labor Is Founded
  5. American Northwest Indian Wars
  6. Atlas-Centaur Rocket Is Developed
  7. Baltimore and Ohio Railroad Begins Operation
  8. Banner Stones
  9. Battle of Fallen Timbers
  10. Battle of Lake Erie
  11. Battle of the Wabash
  12. Beaver Wars
  13. Black Sox Scandal
  14. The CIO Begins Unionizing Unskilled Workers
  15. Coward’s Design for Living Epitomizes the 1930’s
  16. The Cuyahoga River Bursts into Flames
  17. Disposable Diapers Are Introduced
  18. Du Pont Introduces Neoprene
  19. Favaloro Develops the Coronary Artery Bypass Operation
  20. First Black Codes
  21. Five States Agree to Halt Lake Erie Pollution
  22. Fort Greenville Treaty
  23. Hopewell People Construct Earthworks
  24. Intellectuals Form the Society of American Indians
  25. Iroquois Confederacy
  26. The Last Passenger Pigeon Dies
  27. Little Turtle's War
  28. Lord Dunmore's War
  29. Midgley Introduces Dichlorodifluoromethane as a Refrigerant Gas
  30. Mississippian Culture
  31. Mound Builders Rise in Ohio Valley
  32. Mounds and Mound Builders
  33. National Guard Kills Demonstrators at Kent State University
  34. National Guardsmen Kill Four Students at Kent State
  35. Northwest Ordinance
  36. Oberlin College Is Established
  37. Ohio Mound Builder
  38. Pontiac's Resistance
  39. Procter & Gamble Begins Selling Directly to Retailers
  40. Rise of Woman Suffrage Associations
  41. Sabin Develops an Oral Polio Vaccine
  42. Serpent Mounds
  43. Spangler Makes First Electric Vacuum Cleaner
  44. Squier Founds Muzak
  45. The St. Lawrence Seaway Is Completed
  46. The St. Lawrence Seaway Is Opened
  47. Standard Oil Trust Is Organized
  48. Tecumseh's Rebellion
  49. Textron Initiates the Trend Toward Conglomeration
  50. Woodland Culture Flourishes in Northern America