John Cabot
http://wikipedia.org/wiki/John_Cabot
http://www.heritage.nf.ca/exploration/cabot.html
http://www.answers.com/topic/john-cabot
http://www.newadvent.org/cathen/03126d.htm
Vasco Nunez de Balboa 1513
http://coloquio.com/famosos/balboa.html
http://en.wikipedia.org/wiki/Vasco_N%C3%BA%C3%B1ez_de_Balboa
http://library.thinkquest.org/C004237/english/nond/balboa.html
http://www.infoplease.com/ce6/people/A0805858.html
http://www.elizabethan-era.org.uk/vasco-nunez-de-balboa.htm
Ferdinand Magellan 1519
http://www.cdli.ca/CITE/exmagellan.htm
http://en.wikipedia.org/wiki/Ferdinand_Magellan
http://www.fordham.edu/halsall/mod/1519magellan.html
http://www.thenagain.info/WebChron/WestEurope/Magellan.html
Jacques Cartier 1530
http://en.wikipedia.org/wiki/Jacques_Cartier
http://experts.about.com/e/j/ja/Jacques_Cartier.htm
http://www.trivia-library.com/c/history-of-american-exploration-from-1530-to-1535.htm
http://jacquescartier.org/jacques-cartier/jacquescartier.html
Samuel de Champlain 1603
http://www.newadvent.org/cathen/03567a.htm
http://www.enchantedlearning.com/explorers/page/c/champlain.shtml
http://www3.sympatico.ca/goweezer/canada/z16champ1.htm
http://www.samueldechamplain.com/
http://www.infoplease.com/ce6/people/A0811298.html
Henry Hudson 1607
http://www.enchantedlearning.com/explorers/page/h/hudson.shtml
http://www.answers.com/topic/henry-hudson
http://www.ianchadwick.com/hudson/hudson_01.htm
http://www.cdli.ca/CITE/exhudson.htm