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  1. Lewis And Clark, 1805
  2. Lewis and Clark, with their guide Sacagawea in the Bitterroot Mountains
  3. Lindbergh with his airplane, 1928
  4. Captain Roald Amundsen at the South Pole, 1912
  5. Signature of John Hancock
  6. Christopher Columbus (1451-1506)
  7. Christopher Columbus's Departure from the Harbour of Palos
  8. David Crockett By Asher Brown Durand After A. L. De Rose
  9. Captain Roald Amundsen
  10. Portrait of naturalist and geologist Charles Darwin
  11. Sir Walter Raleigh , English explorer
  12. Kit Carson, American frontiersman
  13. Cape Disappointment State Park - Lewis & Clark