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  1. Pi to 2198 decimal place
  2. Purple Watercolor Agate I
  3. Vintage Civil War print of President Abraham Lincoln and his cabinet
  4. Bullfrog
  5. Human anatomy showing deep muscles in the neck and upper back
  6. Women's Rights Parade, 1913
  7. Civil War print depicting the Union Army's capture of Fort Fisher
  8. Young boy in school writing on chalkboard
  9. Distance of Sun, Moon and Planets
  10. College Graduation Ceremony
  11. Listen to your Teacher
  12. Vintage Civil War print of the Battle of Fredericksburg
  13. Blood clot, SEM
  14. Relaxing feet.
  15. Alberta, Reserve, c1890
  16. Ocean Jasper
  17. Bouncing ball
  18. Muhammad Ali on the shore of the Congo River, Kinshasa, Zaire
  19. Artist's Rendering Of A Solar System
  20. Normal shoulder, X-ray
  21. Signature of John Hancock
  22. Mohawk Village, 1780
  23. Capitol From the Botanical Gardens
  24. Bright Periodic Table - White, Classic Text
  25. Microscopic view of bacteria
  26. Denver, Colorado, 1859
  27. Mathematical Elements IV
  28. Solar System II
  29. Replica Of Eli Whitney's Cotton Gin
  30. Pair of human hands on black background.
  31. Pastel Periodic Table - Classic Text
  32. Normal shoulder, X-ray
  33. RMS Titanic being moved out of drydock, March 6, 1912
  34. Teacher's desk in classroom
  35. Portrait Of Rosa Parks, Civil Rights Leader
  36. Diphtheria treatment, artwork
  37. Newsboy Ned Parfett announcing the sinking of the 'Titanic' on April 16, 1912
  38. Balance
  39. Hampton Institute, 1899
  40. Joan of Arc Re-Captures City of Beaugency From the British
  41. Sioux Dance, 1890
  42. Paisley Agate
  43. Christmas Jasper
  44. Vintage Civil War print of President Abraham Lincoln and his cabinet
  45. Close-Up Of Fortification Laguna Agate
  46. Columbus, Map, 15th Century
  47. Washing Gold, Calaveras, California, 1853
  48. Native Americans Bringing Furs To Dutch Traders