I've been googling for more information. Here are two more interesting sites:
Was Christopher Columbus a Jew?
Christopher Columbus - Mythbusters is halfway down the page
I also read that the "Majesties" of Spain had called for all Jews to be expelled from Spain. Perhaps in the climate of the times, Columbus felt compelled to hide his Jewish identity (if he indeed was Jewish).
The Vatican, also, is withholding quite a bit of information from the public re Columbus.
Please FREEPMAIL me if you want on, off, or alter the "Gods, Graves, Glyphs" PING list --
Archaeology/Anthropology/Ancient Cultures/Artifacts/Antiquities, etc.
The GGG Digest -- Gods, Graves, Glyphs (alpha order)
Hmmm. Exclamation points and claims of conspiracy. Yeah, I'm convinced. /sarcasm