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WikiPedia: Cristoforo_Colombo //nla.gov.au/anbd.aut-an35784235 http://www.pc.gc.ca/lhn-nhs/nl/meadows/index_e.asp http://www.bcngrafics.com/xpoferens/ http://www.britannica.com/EBchecked/topic/127070 http://www.britannica.com/EBchecked/topic/127070/C... http://www.columbusnavigation.com/ http://www.dightonrock.com/articles-Columbus.htm http://dsc.discovery.com/convergence/columbus/evid... http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&G... http://books.google.com/books?vid=OCLC03615973&id=...