Michael Singer, "Free Encyclopedia Project Celebrates Year One," siliconvalley.internet.com (http://siliconvalley.internet.com/news/article/0,,3531_956641,00), January 16, 2002
Mary Ellen Quinn, Wikipedia (http://www.ala.org/Content/NavigationMenu/Products_and_Publications/Periodicals/Booklist/Special_Lists_and_Features7/Special_Lists_and_Features3/Reference_on_the_Web/Wikipedia_.htm), Booklist Magazine[?], a publication of the American Library Association[?], September 15, 2002
... it to Albany, discovered Hudson Bay
Alexander von Humboldt, (1769-1859), explored Central and South America, visited Siberia
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Helge Ingstad, (1899-2001), Norwegian, ...