this is true but I dont know that that matters anymore being that hollidays are just symbols meant to represent an important date in a religions history, just because the dates are off does not mean that the meaning behind the holliday has changed, but its all a matter of opinion and when and what you choose to celebrate, the fact is that no christian hollidays really affect the turnout at games, but Yom Kippur actually keeps a fairly signifigant amount from attending night games.