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  1. Light bulb, historical artwork
  2. Richard Allen (1760-1831)
  3. Bobby Seale (1936- )
  4. An early telephone
  5. Garnerin's parachute design, 1797
  6. President Clinton At The Inauguration Ceremony, Capitol Building, Washington DC
  7. The Portugese Cannon, Calton Hill, Edinburgh, Scotland
  8. Barack Obama, 2008
  9. Geoheliocentric cosmology, 16th century
  10. Japanese Troops Attempting To Blockade Port Arthur On Small Boats, Dated 1904
  11. Revolutionary War Print of General Mad Anthony Wayne
  12. Huge stone walls around the fortress of Suwon, South Korea
  13. Derrick-Man, 1933
  14. Graphic By Randolph Caldecott, A British Artist And Illustrator, Dated 19th C.
  15. Maggie Lena Walker
  16. Bust of Scipio Africanus the Elder
  17. Vintage World War II poster
  18. Advertisement For E.S. Baker Young America Hams Breakfast Bacon, c1865
  19. Frederick Douglass (c1817-1895)
  20. The Japanese Commander, Major General Fukushima Standing With A British Commander, China
  21. A Black Soldier In the Union Army Leading A Supply Train, 1864
  22. Defense Attorney William Kunstler and Rev. Ralph Abernathy
  23. USS Maine Funeral Procession
  24. Japanese Troops Bursting Through A Gate And Engaging The Boxer Forces At Tianjin, China
  25. King Chulalongkorn With Students
  26. Protozoa, historical artwork
  27. Devils Attacking A Safe
  28. Cut-away artwork of a windmill for grinding corn
  29. Mexico, Yucatan, Edzna Maya, the Five Floors Temple and the Square
  30. Steel Crags, Hadrian's Wall, Northumberland, England
  31. National Cemetery, Vicksburg Battlefield, Mississippi
  32. Charles Murphy Seated In A Monoplane
  33. Barack Obama (1961- )
  34. President Richard Nixon welcomes Pres. Joseph Mobutu at the White House
  35. Heart and lung anatomy, 17th century
  36. Water clock, design from 1646
  37. Vintage World War I poster featuring two soldiers
  38. Author Nathaniel Hawthorne
  39. Refractor telescope, 1928
  40. 75,000 cheer Wendell Willkie at Field Monument Circle, in Indianapolis, Indiana
  41. Illustration Of A Printing Shop By Johannes Stradanus
  42. Chest Anatomy, 19th Century Illustration
  43. Benjamin O. Davis, Sr.
  44. Colin Powell (1937- )
  45. Massachusetts, Cape Ann, Gloucester, Re-Enactors Of The Battle Of Gloucester, 1775
  46. Cromwell Dissolving The Long Parliament
  47. Katherine Johnson (1918-2020)
  48. Interior Of Negro Cabin, Spotsylvania Court House, Virginia By Edwin Forbes