ThinkQuest
Citations and References

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1. Image of David Livingstone
   Mr Dowling[http://www.mrdowling.com/610-livingstone.html]
   (Email Message)
2. Image of Stanley
   Mr Dowling[http://www.mrdowling.com/610-livingstone.html]
   (Email Message)
3. Image of Livingstone-Stanley encounter
   ThomasCooper Library, University of South Carolina
   [http://www.sc.edu/library/spcoll/sccoll/africa/africa5.html]
   (Email Message)
4. Image of Livingstone journal
   ThomasCooper Library, University of South Carolina
   [http://www.sc.edu/library/spcoll/sccoll/africa/africa5.html]
   (Email Message)
5. Image of Sputnik-I
   NASA Image eXchange (NIX)
   [http://nix.nasa.gov/]
   (Open Public Domain)
6. Image of Explorer I
   NASA Image eXchange (NIX)
   [http://nix.nasa.gov/]
   (Open Public Domain)
7. Image of Alan Shepard,Neil Armstrong
   NASA Image eXchange (NIX)
   [http://nix.nasa.gov/]
   (Open Public Domain)
8. Image of Skylab
   NASA Image eXchange (NIX)
   [http://nix.nasa.gov/]
   (Open Public Domain)
9. Image of Viking,Voyager liftoff
   NASA Image eXchange (NIX)
   [http://nix.nasa.gov/]
   (Open Public Domain)
10. Image of Mir
    NASA Image eXchange (NIX)
    [http://nix.nasa.gov/]
    (Open Public Domain)
11. Image of Pioneer assembly
    NASA Image eXchange (NIX)
    [http://nix.nasa.gov/]
    (Open Public Domain)
12. Image of Cape of Good Hope
    ThomasCooper Library, University of South Carolina
    [http://www.sc.edu/library/spcoll/sccoll/africa/africa5.html]
    (Email Message)
13. Image of The Nile Basin
    ThomasCooper Library, University of South Carolina
    [http://www.sc.edu/library/spcoll/sccoll/africa/africa5.html]
    (Email Message)
14. Image of Robert Peary
    [Corbis Search]
    (Registration)
15. Image of Sahara
    [http://www.africa.com/gallery/?cat=0-0&m=b&i=1074]
    (Email Message-Photographer)
16. Image of Magellan's ships
    [http://www.geocities.com/Colosseum/Court/6556/magellan2.html]
    (Email Message)
17. Image of battle
    [http://www.geocities.com/Colosseum/Court/6556/magellan2.html]
    (Email Message)
18. Image of John Cabot
    [http://www.austin.isd.tenet.edu/campuses/schools/elem/ridgetop/cabot.html]
    (Email Message)
19. Image of Marco Polo(hometown)
    [Corbis Search]
    (Registration)
20. Image of Cook,Banks
    [http://www.geocities.com/TheTropics/7557/]
    (Email Message)
21. Image of Sir Francis Drake
    [http://www.mcn.org/2/oseeler/drake.htm]
    (Email Message + image is in public domain)
22. Image of the Golden Hind
    [http://www.mcn.org/2/oseeler/drake.htm]
    (Email Message + image is in public domain)
23. Image of man at helm
    [http://www.reedsalmanac.com]
    (Email Message)
24. Image of Hudson's Half Moon
    [http://www.hudsonriver.com]
    (Email Message)