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  1. The night raid on Coventry by German bombers during World War II
  2. George Washington Carver
  3. Knocking-off time at the Harland
  4. Water mill and pump, 18th century
  5. General Philip Kearny's fatal charge at the Battle of Chantilly
  6. Fun Facts about the U.S. Presidents
  7. Dennis Banks
  8. World War II poster of a soldier talking to his girl on a bench as Hitler eavesdrops
  9. George Washington Carver (c1864-1943)
  10. Aden From The Air
  11. Marco Polo
  12. American Red Cross Serves Humanity Join!
  13. Facade Of The Los Angeles Stock Exchange
  14. Niels Bohr, James Franck, Albert Einstein, and Isidor Rabi
  15. May Day, 1907
  16. Chamber Cranes In Pedro Miguel Locks
  17. 19th Century internal combustion engine
  18. Harold Lloyd
  19. French Writer Albert Camus (1913-1960) At Home June 13, 1947
  20. Covered wagon at Scotts Bluff National Monument, Nebraska
  21. LiquidLibrary
  22. Madame C.J. Walker (1867-1919)
  23. World War I poster of a Navy patrol boat in the sea and a plane shining a spotlight
  24. Neptune fountain at Navona square, Rome
  25. Charles Haddon Spurgeon (1834-92) engraved by D.J. Pound from a photograph
  26. Queen Mary of England by Antonio Moro
  27. Camel riders at Giza Pyramids, Giza, Cairo, Egypt, Africa
  28. Victorian or Edwardian Beach Scene
  29. Elijah Muhammad (1897-1975)
  30. Japanese Samurai Blade
  31. Table from Becher's 'Opuscula chymica'
  32. Plans For The Maryland State House
  33. Mylius' Philosophia reformata
  34. German WWII ramjet bomber blueprint
  35. Early American steam locomotive
  36. A Prehistoric Mammoth Hunt
  37. World Trade Center Ground Zero site under reconstruction Sept 8, 2011
  38. Bust of Socrates
  39. The Krak des Chevaliers, Crusader castle, Syria, Middle East
  40. German astronomy atlas, 1882
  41. Newgrange, County Meath, Leinster, Republic of Ireland, Europe
  42. Woman standing at long row of bobbins, at a textile factory, Millville, NJ, 1936
  43. Civil War Poster Seeking Vermont 9Th Infantry Recruits
  44. Silversmith at work, c.1914
  45. Check Up
  46. Pascal's calculator, 17th Century artwork
  47. Edison talking into his phonograph
  48. Department Of Justice Building In Washington D. C