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  1. Pascal's calculator, 17th Century artwork
  2. Katherine Johnson (1918-2020)
  3. Gordon Parks, Jr., filming his autobiographical novel, The Learning Tree
  4. Violin, 17th century artwork
  5. Shoe Factory Workers
  6. Early electric train
  7. Sigmund Freud
  8. Early telephone, historical artwork
  9. Rosalind Franklin, British chemist
  10. German boxer Max Schmeling in a boxing pose in 1938
  11. William Harvey
  12. President Bill Clinton
  13. Construction Of The Library Of Congress Photos May 4, 1892
  14. Engraving Of The Hanging Gardens Of Babylon
  15. National Security Council on Sept 12, 2001
  16. Front View Of The Ferry Building., San. Francisco, Cal. C1905
  17. Emblems from Philosophia reformata
  18. First Lady Mamie Eisenhower and Actress Mary Pickford promote Defense Bonds
  19. Che Guevara Modern Art
  20. Pompeii, Campania, Italy, Europe
  21. The Acropolis, and Lykabettos Hill, Athens, Greece, Europe
  22. Cromwell Dissolving The Long Parliament
  23. WWII Flying Tigers
  24. Knights of the Round Table
  25. General George Patton during a ticker tape parade
  26. 17th century map of the New World
  27. Booker T. Washington (1856-1915)
  28. Stone Statues And The Luxor Temple Along The Nile River; Luxor, Egypt
  29. World War I, Map, c1919
  30. Sojourner Truth (c1797-1883)
  31. Distillation apparatus, 19th century
  32. Food - Don't Waste It, 1917
  33. Albion Printing Press
  34. Panning for gold
  35. Duke Ellington (1899-1974)
  36. A Royal Air Force Hawker Typhoon Mk IB At Tangmere During World War II
  37. Nasmyth's steam hammer, artwork
  38. Tribute in Light Memorial illuminates a passing cloud above lower Manhattan
  39. Duke Ellington (1899-1974)
  40. Vintage World War II poster featuring bombs falling
  41. Bill Tilden, at the opening of the U.S. Pro Tennis Championship Tournament
  42. Heart And Lungs, Historical Illustration
  43. An Eight Year Old Farm Boy Sitting On A Horse Drawn Hay Rake, 1915
  44. Instruments for removing bladder stones
  45. World War II poster showing the silhouette of a soldier with his finger to his lips
  46. Lovecraft
  47. Fondoux el-Nejjarine, Fez, Morocco
  48. John Ernst Worrell Keely