In 1492, King Ferdinand decided that all Spanish Jews should be banned from Spain as a potential infectious danger to the Christian populace. Approximately 150,000 Jews were forced to leave Spain. The Edict of Expulsion expired on the 9th of Av, August 3, 1492. Coincidentally, Columbus and his crew set out on their famous voyage on that day, August 3, boarding before midnight and sailing before sunrise the next day. It is suspected that Columbus and his crew were Jews. Israel and the Church: The Prodigal Heirs p.33
IOW, Is this an antisemitic thread in disguise?